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#apophis — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #apophis, aggregated by home.social.

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  1. ☄️ On April 13, 2029, asteroid Apophis will fly so close to Earth that about 7.6 billion people could see it with their naked eyes.

    Apophis is about 340 meters across, roughly the height of the Eiffel Tower. It will pass just 32,000 km from Earth's surface, closer than our geostationary satellites. The flyby was a hot topic at the Apophis T-3 Years conference in Padua, Italy this June.

    Naked-eye visibility should last about 7 hours as it streaks from Australia across to the North Atlantic. Peak brightness occurs over Cameroon at 4:35 PM EDT. Closest approach is at 5:46 PM EDT over the Atlantic.

    NASA says an asteroid this large passes this close only every few thousand years. There is zero impact risk. Friday the 13th, no less.

    Read more:
    science.nasa.gov/solar-system/
    space.com/astronomy/asteroids/
    eclipseatlas.com/apophis

    #astronomy #apophis #space

  2. ☄️ On April 13, 2029, asteroid Apophis will fly so close to Earth that about 7.6 billion people could see it with their naked eyes.

    Apophis is about 340 meters across, roughly the height of the Eiffel Tower. It will pass just 32,000 km from Earth's surface, closer than our geostationary satellites. The flyby was a hot topic at the Apophis T-3 Years conference in Padua, Italy this June.

    Naked-eye visibility should last about 7 hours as it streaks from Australia across to the North Atlantic. Peak brightness occurs over Cameroon at 4:35 PM EDT. Closest approach is at 5:46 PM EDT over the Atlantic.

    NASA says an asteroid this large passes this close only every few thousand years. There is zero impact risk. Friday the 13th, no less.

    Read more:
    science.nasa.gov/solar-system/
    space.com/astronomy/asteroids/
    eclipseatlas.com/apophis

    #astronomy #apophis #space

  3. 2026-07-24 13:00:00 UTC (Delta: 2026-07-17)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.43 km/s (+0.19 km/s)
    - Rendezvous with Apophis in: 1001 days

    🪨 Relative to Apophis
    - Distance (km): 279,444,872.35 km (-5,212,392.73 km)
    - Distance (AU): 1.87 (-0.03)
    - Light travel time: 15 min 32.16 s (-17.39 s)

    🌎 Relative to Earth
    - Distance (km): 55,168,563.03 km (+3,833,903.96 km)
    - Distance (AU): 0.37 (+0.03)
    - Light travel time: 3 min 4.03 s (+12.79 s)

    #OSIRISAPEx #Apophis

  4. 2026-07-24 13:00:00 UTC (Delta: 2026-07-17)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.43 km/s (+0.19 km/s)
    - Rendezvous with Apophis in: 1001 days

    🪨 Relative to Apophis
    - Distance (km): 279,444,872.35 km (-5,212,392.73 km)
    - Distance (AU): 1.87 (-0.03)
    - Light travel time: 15 min 32.16 s (-17.39 s)

    🌎 Relative to Earth
    - Distance (km): 55,168,563.03 km (+3,833,903.96 km)
    - Distance (AU): 0.37 (+0.03)
    - Light travel time: 3 min 4.03 s (+12.79 s)

    #OSIRISAPEx #Apophis

  5. ESA-Mission mit Beteiligung der TU Braunschweig 🚀

    ☄️ Wenn der #Asteroid #Apophis am 13. April 2029 an der Erde vorbeifliegt, wird ein an der #TUBraunschweig entwickeltes Magnetometer direkt auf seiner Oberfläche geophysikalische Messungen durchführen.

    🛰️ Das Instrument MARIE ist Teil eines landenden CubeSats der #ESA-Mission RAMSES und soll gemeinsam mit weiteren Experimenten die Auswirkungen des außergewöhnlich nahen Erdvorbeiflugs untersuchen.

    👉 lnk.tu-bs.de/zNBQRT

  6. ESA-Mission mit Beteiligung der TU Braunschweig 🚀

    ☄️ Wenn der #Asteroid #Apophis am 13. April 2029 an der Erde vorbeifliegt, wird ein an der #TUBraunschweig entwickeltes Magnetometer direkt auf seiner Oberfläche geophysikalische Messungen durchführen.

    🛰️ Das Instrument MARIE ist Teil eines landenden CubeSats der #ESA-Mission RAMSES und soll gemeinsam mit weiteren Experimenten die Auswirkungen des außergewöhnlich nahen Erdvorbeiflugs untersuchen.

    👉 lnk.tu-bs.de/zNBQRT

  7. 💁🏻‍♀️ TIL: ☄️🌍 A mapping project shared at the University of #Padua shows when and where billions of people can see #asteroid #Apophis during its safe 2029 flyby.

    Scientists calculated that the #space rock will be bright enough for naked eye viewing across #Europe, #Africa, and #Asia, and it will pass closer to our #planet than many #weather #satellites.

    👉 livescience.com/space/asteroid

    #astronomy #science #maps #nasa #earth

  8. 💁🏻‍♀️ TIL: ☄️🌍 A mapping project shared at the University of #Padua shows when and where billions of people can see #asteroid #Apophis during its safe 2029 flyby.

    Scientists calculated that the #space rock will be bright enough for naked eye viewing across #Europe, #Africa, and #Asia, and it will pass closer to our #planet than many #weather #satellites.

    👉 livescience.com/space/asteroid

    #astronomy #science #maps #nasa #earth

  9. "'Shared cosmic experience': 'Potentially hazardous' asteroid Apophis could be visible to 90% of Earth's population during ultraclose 2029 flyby" by @LiveScience - Every continent except North America will have some nighttime hours with view of the near-Earth #asteroid #99942Apophis during its fly-by on April 13, 2029. Closest point will be 19,000mi/30,600km from Earth's surface, which is closer than geosynchronous satellites! livescience.com/space/asteroid #Apophis #NEA #NEO #astronomy #LowFlyingRocks

  10. "'Shared cosmic experience': 'Potentially hazardous' asteroid Apophis could be visible to 90% of Earth's population during ultraclose 2029 flyby" by @LiveScience - Every continent except North America will have some nighttime hours with view of the near-Earth #asteroid #99942Apophis during its fly-by on April 13, 2029. Closest point will be 19,000mi/30,600km from Earth's surface, which is closer than geosynchronous satellites! livescience.com/space/asteroid #Apophis #NEA #NEO #astronomy #LowFlyingRocks

  11. 2026-07-17 13:00:00 UTC (Delta: 2026-07-10)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.24 km/s (+0.14 km/s)
    - Rendezvous with Apophis in: 1008 days

    🪨 Relative to Apophis
    - Distance (km): 284,657,265.08 km (-4,600,577.84 km)
    - Distance (AU): 1.90 (-0.03)
    - Light travel time: 15 min 49.54 s (-15.35 s)

    🌎 Relative to Earth
    - Distance (km): 51,334,659.07 km (+3,311,857.91 km)
    - Distance (AU): 0.34 (+0.02)
    - Light travel time: 2 min 51.24 s (+11.05 s)

    #OSIRISAPEx #Apophis

  12. 2026-07-17 13:00:00 UTC (Delta: 2026-07-10)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.24 km/s (+0.14 km/s)
    - Rendezvous with Apophis in: 1008 days

    🪨 Relative to Apophis
    - Distance (km): 284,657,265.08 km (-4,600,577.84 km)
    - Distance (AU): 1.90 (-0.03)
    - Light travel time: 15 min 49.54 s (-15.35 s)

    🌎 Relative to Earth
    - Distance (km): 51,334,659.07 km (+3,311,857.91 km)
    - Distance (AU): 0.34 (+0.02)
    - Light travel time: 2 min 51.24 s (+11.05 s)

    #OSIRISAPEx #Apophis

  13. 2026-07-10 13:00:00 UTC (Delta: 2026-07-03)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.10 km/s (+0.10 km/s)
    - Rendezvous with Apophis in: 1015 days

    🪨 Relative to Apophis
    - Distance (km): 289,257,842.92 km (-3,991,373.18 km)
    - Distance (AU): 1.93 (-0.03)
    - Light travel time: 16 min 4.89 s (-13.31 s)

    🌎 Relative to Earth
    - Distance (km): 48,022,801.16 km (+2,562,300.48 km)
    - Distance (AU): 0.32 (+0.02)
    - Light travel time: 2 min 40.19 s (+8.55 s)

    #OSIRISAPEx #Apophis

  14. 2026-07-10 13:00:00 UTC (Delta: 2026-07-03)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.10 km/s (+0.10 km/s)
    - Rendezvous with Apophis in: 1015 days

    🪨 Relative to Apophis
    - Distance (km): 289,257,842.92 km (-3,991,373.18 km)
    - Distance (AU): 1.93 (-0.03)
    - Light travel time: 16 min 4.89 s (-13.31 s)

    🌎 Relative to Earth
    - Distance (km): 48,022,801.16 km (+2,562,300.48 km)
    - Distance (AU): 0.32 (+0.02)
    - Light travel time: 2 min 40.19 s (+8.55 s)

    #OSIRISAPEx #Apophis

  15. Paul Simon presents a combination of dynamical, space weathering, and spectral models to try and figure out just where near-Earth asteroids visited by spacecraft came from.

    Suggests Eros, #Itokawa, #Torifune, and #Apophis all came from the main-belt asteroid Flora 1.2 billion years ago.

    #ACM2026

  16. #ESA:
    "
    Surface CubeSat contracted for Ramses asteroid mission
    "
    ".. contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid. Don Quijote is a shoebox-sized spacecraft that will be deployed onto the Apophis asteroid by ESA’s Ramses mission before the asteroid flies by Earth on 13 April 2029. .."

    esa.int/Space_Safety/Planetary

    2.7.2026

    #Apophis #Asteroid #Cubesat #DonQuijote #EMXYS #GRASS #MARIE #Ramses #Raumfahrt #Raumsonde #SIA #SpaceFlight

  17. #ESA:
    "
    Surface CubeSat contracted for Ramses asteroid mission
    "
    ".. contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid. Don Quijote is a shoebox-sized spacecraft that will be deployed onto the Apophis asteroid by ESA’s Ramses mission before the asteroid flies by Earth on 13 April 2029. .."

    esa.int/Space_Safety/Planetary

    2.7.2026

    #Apophis #Asteroid #Cubesat #DonQuijote #EMXYS #GRASS #MARIE #Ramses #Raumfahrt #Raumsonde #SIA #SpaceFlight

  18. 2026-07-03 13:00:00 UTC (Delta: 2026-06-26)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.00 km/s (+0.06 km/s)
    - Rendezvous with Apophis in: 1022 days

    🪨 Relative to Apophis
    - Distance (km): 293,249,216.10 km (-3,385,927.15 km)
    - Distance (AU): 1.96 (-0.02)
    - Light travel time: 16 min 18.20 s (-11.29 s)

    🌎 Relative to Earth
    - Distance (km): 45,460,500.67 km (+1,616,743.57 km)
    - Distance (AU): 0.30 (+0.01)
    - Light travel time: 2 min 31.64 s (+5.39 s)

    #OSIRISAPEx #Apophis

  19. 2026-07-03 13:00:00 UTC (Delta: 2026-06-26)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.00 km/s (+0.06 km/s)
    - Rendezvous with Apophis in: 1022 days

    🪨 Relative to Apophis
    - Distance (km): 293,249,216.10 km (-3,385,927.15 km)
    - Distance (AU): 1.96 (-0.02)
    - Light travel time: 16 min 18.20 s (-11.29 s)

    🌎 Relative to Earth
    - Distance (km): 45,460,500.67 km (+1,616,743.57 km)
    - Distance (AU): 0.30 (+0.01)
    - Light travel time: 2 min 31.64 s (+5.39 s)

    #OSIRISAPEx #Apophis

  20. The European Space Agency has contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid: esa.int/Space_Safety/Planetary - #DonQuijote is a shoebox-sized spacecraft that will be deployed onto the #Apophis asteroid by ESA’s #Ramses mission before the asteroid flies by Earth on 13 April 2029.

  21. The European Space Agency has contracted Spanish company EMXYS for the first CubeSat designed to operate on the surface of an asteroid: esa.int/Space_Safety/Planetary - #DonQuijote is a shoebox-sized spacecraft that will be deployed onto the #Apophis asteroid by ESA’s #Ramses mission before the asteroid flies by Earth on 13 April 2029.

  22. 2026-06-26 13:00:00 UTC (Delta: 2026-06-19)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.94 km/s (+0.01 km/s)
    - Rendezvous with Apophis in: 1029 days

    🪨 Relative to Apophis
    - Distance (km): 296,635,143.25 km (-2,785,237.01 km)
    - Distance (AU): 1.98 (-0.02)
    - Light travel time: 16 min 29.50 s (-9.29 s)

    🌎 Relative to Earth
    - Distance (km): 43,843,757.10 km (+519,013.74 km)
    - Distance (AU): 0.29 (+0.00)
    - Light travel time: 2 min 26.25 s (+1.73 s)

    #OSIRISAPEx #Apophis

  23. 2026-06-26 13:00:00 UTC (Delta: 2026-06-19)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.94 km/s (+0.01 km/s)
    - Rendezvous with Apophis in: 1029 days

    🪨 Relative to Apophis
    - Distance (km): 296,635,143.25 km (-2,785,237.01 km)
    - Distance (AU): 1.98 (-0.02)
    - Light travel time: 16 min 29.50 s (-9.29 s)

    🌎 Relative to Earth
    - Distance (km): 43,843,757.10 km (+519,013.74 km)
    - Distance (AU): 0.29 (+0.00)
    - Light travel time: 2 min 26.25 s (+1.73 s)

    #OSIRISAPEx #Apophis

  24. 🛰️☄️ La construction de la sonde européenne #Ramses, pour l'exploration de l'astéroïde #Apophis en 2029, a débuté chez OHB à Brême, en Allemagne. Le tube central est désormais achevé. Les autres composants structurels sont en cours d'assemblage autour de celui-ci
    📷 OHB

  25. 🛰️☄️ La construction de la sonde européenne #Ramses, pour l'exploration de l'astéroïde #Apophis en 2029, a débuté chez OHB à Brême, en Allemagne. Le tube central est désormais achevé. Les autres composants structurels sont en cours d'assemblage autour de celui-ci
    📷 OHB

  26. 2026-06-19 13:00:00 UTC (Delta: 2026-06-12)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.93 km/s (-0.03 km/s)
    - Rendezvous with Apophis in: 1036 days

    🪨 Relative to Apophis
    - Distance (km): 299,420,380.26 km (-2,190,234.68 km)
    - Distance (AU): 2.00 (-0.01)
    - Light travel time: 16 min 38.79 s (-7.31 s)

    🌎 Relative to Earth
    - Distance (km): 43,324,743.36 km (-649,730.77 km)
    - Distance (AU): 0.29 (-0.00)
    - Light travel time: 2 min 24.52 s (-2.17 s)

    #OSIRISAPEx #Apophis

  27. 2026-06-19 13:00:00 UTC (Delta: 2026-06-12)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.93 km/s (-0.03 km/s)
    - Rendezvous with Apophis in: 1036 days

    🪨 Relative to Apophis
    - Distance (km): 299,420,380.26 km (-2,190,234.68 km)
    - Distance (AU): 2.00 (-0.01)
    - Light travel time: 16 min 38.79 s (-7.31 s)

    🌎 Relative to Earth
    - Distance (km): 43,324,743.36 km (-649,730.77 km)
    - Distance (AU): 0.29 (-0.00)
    - Light travel time: 2 min 24.52 s (-2.17 s)

    #OSIRISAPEx #Apophis

  28. RE: mastodon.online/@michael_w_bus

    5.8 Earth radii distance sounds a bit too close for comfort to me. But I see experts have been watching this rock for decades and downgraded the risk assessment en.wikipedia.org/wiki/99942_Ap #apophis #science #solarSystem

  29. RE: mastodon.online/@michael_w_bus

    5.8 Earth radii distance sounds a bit too close for comfort to me. But I see experts have been watching this rock for decades and downgraded the risk assessment en.wikipedia.org/wiki/99942_Ap #apophis #science #solarSystem

  30. 2026-06-12 13:00:00 UTC (Delta: 2026-06-05)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.96 km/s (-0.07 km/s)
    - Rendezvous with Apophis in: 1043 days

    🪨 Relative to Apophis
    - Distance (km): 301,610,614.94 km (-1,601,845.41 km)
    - Distance (AU): 2.02 (-0.01)
    - Light travel time: 16 min 46.10 s (-5.34 s)

    🌎 Relative to Earth
    - Distance (km): 43,974,474.13 km (-1,756,524.02 km)
    - Distance (AU): 0.29 (-0.01)
    - Light travel time: 2 min 26.69 s (-5.86 s)

    #OSIRISAPEx #Apophis

  31. 2026-06-12 13:00:00 UTC (Delta: 2026-06-05)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 22.96 km/s (-0.07 km/s)
    - Rendezvous with Apophis in: 1043 days

    🪨 Relative to Apophis
    - Distance (km): 301,610,614.94 km (-1,601,845.41 km)
    - Distance (AU): 2.02 (-0.01)
    - Light travel time: 16 min 46.10 s (-5.34 s)

    🌎 Relative to Earth
    - Distance (km): 43,974,474.13 km (-1,756,524.02 km)
    - Distance (AU): 0.29 (-0.01)
    - Light travel time: 2 min 26.69 s (-5.86 s)

    #OSIRISAPEx #Apophis

  32. #OHB:
    "
    OHB startet Bau der ESA-JAXA RAMSES-Sonde
    "
    "Im Reinraum v. OHB in Bremen haben die Arbeiten an der europäischen Planetenverteidigungsmission RAMSES (Rapid Apophis Mission for Space Safety) offiziell begonnen. .. Um den Asteroiden Apophis vor seinem spektakulären Erdvorbeiflug im April 2029 rechtzeitig zu erreichen, muss der Start der RAMSES-Sonde bereits im Frühjahr 2028 erfolgen."

    ohb.de/aktuelles/ohb-startet-b

    4.6.2026

    #Apophis #Bremen #ESA #JAXA #RAMSES #Raumfahrt #Raumsonde #SpaceFlight

  33. #OHB:
    "
    OHB startet Bau der ESA-JAXA RAMSES-Sonde
    "
    "Im Reinraum v. OHB in Bremen haben die Arbeiten an der europäischen Planetenverteidigungsmission RAMSES (Rapid Apophis Mission for Space Safety) offiziell begonnen. .. Um den Asteroiden Apophis vor seinem spektakulären Erdvorbeiflug im April 2029 rechtzeitig zu erreichen, muss der Start der RAMSES-Sonde bereits im Frühjahr 2028 erfolgen."

    ohb.de/aktuelles/ohb-startet-b

    4.6.2026

    #Apophis #Bremen #ESA #JAXA #RAMSES #Raumfahrt #Raumsonde #SpaceFlight

  34. 2026-06-05 13:00:00 UTC (Delta: 2026-05-29)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.04 km/s (-0.12 km/s)
    - Rendezvous with Apophis in: 1050 days

    🪨 Relative to Apophis
    - Distance (km): 303,212,460.35 km (-1,021,084.06 km)
    - Distance (AU): 2.03 (-0.01)
    - Light travel time: 16 min 51.44 s (-3.41 s)

    🌎 Relative to Earth
    - Distance (km): 45,730,998.15 km (-2,686,553.95 km)
    - Distance (AU): 0.31 (-0.02)
    - Light travel time: 2 min 32.55 s (-8.96 s)

    #OSIRISAPEx #Apophis

  35. 2026-06-05 13:00:00 UTC (Delta: 2026-05-29)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.04 km/s (-0.12 km/s)
    - Rendezvous with Apophis in: 1050 days

    🪨 Relative to Apophis
    - Distance (km): 303,212,460.35 km (-1,021,084.06 km)
    - Distance (AU): 2.03 (-0.01)
    - Light travel time: 16 min 51.44 s (-3.41 s)

    🌎 Relative to Earth
    - Distance (km): 45,730,998.15 km (-2,686,553.95 km)
    - Distance (AU): 0.31 (-0.02)
    - Light travel time: 2 min 32.55 s (-8.96 s)

    #OSIRISAPEx #Apophis

  36. in 2029
    by and by
    Apophis flew
    its gravity declined
    by distance
    to the negative two
    far too small
    to rattle me and you

    #poetry
    #Apophis
    #gravity

  37. in 2029
    by and by
    Apophis flew
    its gravity declined
    by distance
    to the negative two
    far too small
    to rattle me and you

    #poetry
    #Apophis
    #gravity

  38. 2026-05-29 13:00:00 UTC (Delta: 2026-05-22)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.16 km/s (-0.16 km/s)
    - Rendezvous with Apophis in: 1057 days

    🪨 Relative to Apophis
    - Distance (km): 304,233,544.40 km (-449,100.16 km)
    - Distance (AU): 2.03 (-0.00)
    - Light travel time: 16 min 54.84 s (-1.50 s)

    🌎 Relative to Earth
    - Distance (km): 48,417,552.09 km (-3,407,668.82 km)
    - Distance (AU): 0.32 (-0.02)
    - Light travel time: 2 min 41.51 s (-11.37 s)

    #OSIRISAPEx #Apophis

  39. 2026-05-29 13:00:00 UTC (Delta: 2026-05-22)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.16 km/s (-0.16 km/s)
    - Rendezvous with Apophis in: 1057 days

    🪨 Relative to Apophis
    - Distance (km): 304,233,544.40 km (-449,100.16 km)
    - Distance (AU): 2.03 (-0.00)
    - Light travel time: 16 min 54.84 s (-1.50 s)

    🌎 Relative to Earth
    - Distance (km): 48,417,552.09 km (-3,407,668.82 km)
    - Distance (AU): 0.32 (-0.02)
    - Light travel time: 2 min 41.51 s (-11.37 s)

    #OSIRISAPEx #Apophis

  40. 2026-05-22 13:00:00 UTC (Delta: 2026-05-15)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.32 km/s (-0.21 km/s)
    - Rendezvous with Apophis in: 1064 days

    🪨 Relative to Apophis
    - Distance (km): 304,682,644.56 km (+112,774.39 km)
    - Distance (AU): 2.04 (+0.00)
    - Light travel time: 16 min 56.34 s (+0.38 s)

    🌎 Relative to Earth
    - Distance (km): 51,825,220.91 km (-3,924,925.83 km)
    - Distance (AU): 0.35 (-0.03)
    - Light travel time: 2 min 52.88 s (-13.09 s)

    #OSIRISAPEx #Apophis

  41. 2026-05-22 13:00:00 UTC (Delta: 2026-05-15)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.32 km/s (-0.21 km/s)
    - Rendezvous with Apophis in: 1064 days

    🪨 Relative to Apophis
    - Distance (km): 304,682,644.56 km (+112,774.39 km)
    - Distance (AU): 2.04 (+0.00)
    - Light travel time: 16 min 56.34 s (+0.38 s)

    🌎 Relative to Earth
    - Distance (km): 51,825,220.91 km (-3,924,925.83 km)
    - Distance (AU): 0.35 (-0.03)
    - Light travel time: 2 min 52.88 s (-13.09 s)

    #OSIRISAPEx #Apophis

  42. Today in the Planetary Science Journal:

    Schettino & Rossi 2026, "Potential Interaction of 99942 Apophis with the High Earth Orbit Population during the 2029 Close Approach" - iopscience.iop.org/article/10.

    Please do not put any orbital debris where #Apophis might run into it.

  43. Today in the Planetary Science Journal:

    Schettino & Rossi 2026, "Potential Interaction of 99942 Apophis with the High Earth Orbit Population during the 2029 Close Approach" - iopscience.iop.org/article/10.

    Please do not put any orbital debris where #Apophis might run into it.

  44. 2026-05-15 13:00:00 UTC (Delta: 2026-05-08)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.53 km/s (-0.25 km/s)
    - Rendezvous with Apophis in: 1071 days

    🪨 Relative to Apophis
    - Distance (km): 304,569,870.18 km (+662,934.33 km)
    - Distance (AU): 2.04 (+0.00)
    - Light travel time: 16 min 55.97 s (+2.21 s)

    🌎 Relative to Earth
    - Distance (km): 55,750,146.74 km (-4,238,487.65 km)
    - Distance (AU): 0.37 (-0.03)
    - Light travel time: 3 min 5.97 s (-14.14 s)

    #OSIRISAPEx #Apophis

  45. 2026-05-15 13:00:00 UTC (Delta: 2026-05-08)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.53 km/s (-0.25 km/s)
    - Rendezvous with Apophis in: 1071 days

    🪨 Relative to Apophis
    - Distance (km): 304,569,870.18 km (+662,934.33 km)
    - Distance (AU): 2.04 (+0.00)
    - Light travel time: 16 min 55.97 s (+2.21 s)

    🌎 Relative to Earth
    - Distance (km): 55,750,146.74 km (-4,238,487.65 km)
    - Distance (AU): 0.37 (-0.03)
    - Light travel time: 3 min 5.97 s (-14.14 s)

    #OSIRISAPEx #Apophis

  46. @angryastro

    Forget #apophis

    In a mere FIVE DAYS, a newly discovered asteroid will pass dangerously close to Earth!

    Could it hit?

    The answer is, maybe, but even if it doesn't, the danger won't go away!
    youtu.be/DoweVPdvW8I

  47. @angryastro

    Forget #apophis

    In a mere FIVE DAYS, a newly discovered asteroid will pass dangerously close to Earth!

    Could it hit?

    The answer is, maybe, but even if it doesn't, the danger won't go away!
    youtu.be/DoweVPdvW8I

  48. RE: mastodon.social/@coreyspowell/

    Apophis is one of those close orbit asteroids that newspapers like to say is definitely going to destroy us on some future date because if it's not 'Aliens' its 'Doomsday' with Space stories.

    Instead looks like we're going to land on it and follow it around!

    #Apophis #Space #Astrodon #Asteroids

  49. RE: mastodon.social/@coreyspowell/

    Apophis is one of those close orbit asteroids that newspapers like to say is definitely going to destroy us on some future date because if it's not 'Aliens' its 'Doomsday' with Space stories.

    Instead looks like we're going to land on it and follow it around!

    #Apophis #Space #Astrodon #Asteroids

  50. #ESA:
    "
    ESA and JAXA team up on planetary defence, Ramses mission to asteroid Apophis
    "
    ".. ESA and .. JAXA have signed a Memorandum of Cooperation to deepen collaboration in planetary defence, alongside a dedicated agreement for collaboration on the Rapid Apophis Mission for Space Safety (Ramses) to the near-Earth asteroid Apophis."

    esa.int/Space_Safety/Planetary

    7.5.2025

    #Apophis #ASI #Asteroid #Europa #Japan #JAXA #OHB #RAMSES #Raumfahrt #Raumsonde #SpaceFlight

  51. #ESA:
    "
    ESA and JAXA team up on planetary defence, Ramses mission to asteroid Apophis
    "
    ".. ESA and .. JAXA have signed a Memorandum of Cooperation to deepen collaboration in planetary defence, alongside a dedicated agreement for collaboration on the Rapid Apophis Mission for Space Safety (Ramses) to the near-Earth asteroid Apophis."

    esa.int/Space_Safety/Planetary

    7.5.2025

    #Apophis #ASI #Asteroid #Europa #Japan #JAXA #OHB #RAMSES #Raumfahrt #Raumsonde #SpaceFlight

  52. 2026-05-08 13:00:00 UTC (Delta: 2026-05-01)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.78 km/s (-0.30 km/s)
    - Rendezvous with Apophis in: 1078 days

    🪨 Relative to Apophis
    - Distance (km): 303,906,935.84 km (+1,199,429.10 km)
    - Distance (AU): 2.03 (+0.01)
    - Light travel time: 16 min 53.76 s (+4.00 s)

    🌎 Relative to Earth
    - Distance (km): 59,988,634.39 km (-4,368,029.87 km)
    - Distance (AU): 0.40 (-0.03)
    - Light travel time: 3 min 20.11 s (-14.57 s)

    #OSIRISAPEx #Apophis

  53. 2026-05-08 13:00:00 UTC (Delta: 2026-05-01)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 23.78 km/s (-0.30 km/s)
    - Rendezvous with Apophis in: 1078 days

    🪨 Relative to Apophis
    - Distance (km): 303,906,935.84 km (+1,199,429.10 km)
    - Distance (AU): 2.03 (+0.01)
    - Light travel time: 16 min 53.76 s (+4.00 s)

    🌎 Relative to Earth
    - Distance (km): 59,988,634.39 km (-4,368,029.87 km)
    - Distance (AU): 0.40 (-0.03)
    - Light travel time: 3 min 20.11 s (-14.57 s)

    #OSIRISAPEx #Apophis

  54. 2026-05-01 13:00:00 UTC (Delta: 2026-04-24)

    WHERE IS OSIRIS-APEX?
    - Barycentric speed: 24.07 km/s (-0.34 km/s)
    - Rendezvous with Apophis in: 1085 days

    🪨 Relative to Apophis
    - Distance (km): 302,707,506.74 km (+1,719,877.86 km)
    - Distance (AU): 2.02 (+0.01)
    - Light travel time: 16 min 49.75 s (+5.74 s)

    🌎 Relative to Earth
    - Distance (km): 64,356,664.26 km (-4,359,334.51 km)
    - Distance (AU): 0.43 (-0.03)
    - Light travel time: 3 min 34.68 s (-14.54 s)

    #OSIRISAPEx #Apophis