SpazeNear-Earth asteroid, B-type
Bennu
A spinning-top rubble pile. OSIRIS-REx brought 121 grams of it back to Earth in 2023, full of the ingredients of life.
- Size
- 0.5047 × 0.4918 × 0.4567 km
- Orbit
- 438.7 days
- Distance from Sun
- 0.9 to 1.4 AU
- Day
- 4.3 hours
- Reflects
- 4% of sunlight
- Visited by
- OSIRIS-REx, 2018–2021
Can we live on Bennu?
Air: none to speak of. You’d live in sealed, pressurised habitats.
Gravity: 0.00 g. Someone who weighs 70 kg on Earth would weigh 0 kg there.
Ground: Carbon-rich rubble with water-bearing clays and amino acids.
Atmosphere
- None to speak of
Measured by OSIRIS-REx sample