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99942 Apophis On the News!OpinionCommentary, not the record

Apophis countdown, 128 weeks to go: a Chinese student team wants a front-row seat

This week's claim about the 2029 flyby, checked: Tsinghua's START mission is real, but Apophis is not "the most dangerous asteroid".

Asteroid & Near-Earth Object Reporter
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Chinese students build satellite to observe asteroid Apophis
Chinese students build satellite to observe asteroid Apophis AI illustrationhow this picture was made
BEIJING, China, Oct. 30, 2026 - 128 weeks (896 days) to go until asteroid 99942 Apophis passes Earth on 13 April 2029,[1] about 32,000 kilometres away.[2] This week's claim comes from China. This week's claim: "a Chinese university probe will fly to the most dangerous asteroid." Tsinghua University is developing START,[3] a student-built mission[4] to observe Apophis during its 2029 close approach.[5] It is planned to launch in early 2028 as a rideshare payload.[6] The team says START has completed its system-level design[7] and was in detailed design as of July 2026,[8] with manufacturing planned to start in late 2026.[9] Where reports disagree: the team's own conference abstract describes a 200-kilogram smallsat[10] with a budget of about $0.8 million,[11] while one news report gives a mass of 20 kg[12] and $2.8 million in government funding.[13] We go with the team's figures. Verdict: a real mission in development, but "most dangerous asteroid" is wrong. Apophis was once given a 1-in-37 chance of hitting Earth in 2029,[14] a risk later reduced to zero,[15] and a collision in 2029 is ruled out.[16] Also this week: ESA's Ramses, a joint mission with JAXA,[17] was switched on for the first time by its prime contractor,[18] and its two modules will be joined next spring at ESA's ESTEC test centre in the Netherlands.[19] Impact Insight. The more spacecraft that watch the 2029 pass, from different distances and angles, the better scientists can measure how Earth's gravity tugs on an asteroid hundreds of metres across, changing its spin and possibly its surface. That is the kind of data planetary defense needs about how asteroids hold together before anyone could plan to deflect one.
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What this stands on
  1. Apophis will pass Earth on 13 April 2029. · spektrum.deGermany
  2. Apophis will pass 32000 kilometres from Earth in 2029. · spektrum.deGermany
  3. The START mission is developed by Tsinghua University. · meetingorganizer.copernicus.org
  4. START mission was developed by Tsinghua University students. · universemagazine.com
  5. START will observe asteroid Apophis during its 2029 Earth close approach. · meetingorganizer.copernicus.org
  6. START is planned to launch in early 2028 as a rideshare payload. · meetingorganizer.copernicus.org
  7. START has completed system level design. · meetingorganizer.copernicus.org
  8. START is in detailed design phase as of July 2026. · meetingorganizer.copernicus.org
  9. START spacecraft manufacturing is planned to start late 2026. · meetingorganizer.copernicus.org
  10. START is a 200 kilogram SmallSat mission. · meetingorganizer.copernicus.org
  11. START mission budget is approximately 0.8 million USD. · meetingorganizer.copernicus.org
  12. START spacecraft has a mass of 20 kg. · universemagazine.com
  13. START mission received $2.8 million in government funding. · universemagazine.com
  14. Initial 2004 calculations found 1 in 37 chance Apophis would hit Earth in 2029. · spektrum.deGermany
  15. Apophis 2029 Earth impact chance was later reduced to zero. · spektrum.deGermany
  16. Apophis collision with Earth in 2029 is ruled out. · universemagazine.com
  17. Ramses is a joint planetary defence mission by ESA and JAXA. · esa.intofficial source
  18. The Ramses spacecraft was switched on for the first time by its prime contractor. · esa.intofficial source
  19. Ramses modules will be mated next spring at ESA ESTEC Test Centre Netherlands. · esa.intofficial source
The one we could place publishes from Germany. 3 could not be placed by their address. 1 is an official body, so this traces to the document itself.