A new record was set for the largest number of humans in orbit (14) on 16 September 2021, [9] and a new record for the largest number of humans in space (19) at one time (10 in the ISS, 3 …

As of 2021, 2021 PH 27 holds the record for the smallest semi-major axis (0.46 AU) and shortest orbital period (114 days) of any known asteroid, supplanting 2019 LF 6 and 594913 …

2024年10月13日 · 2021 TK11 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2021 TK11 as a "Near Earth Asteroid" due to its orbit's proximity to …

As the observation dataset grows in the coming weeks and months, the orbit of 2021 PDC will become increasingly well determined, and if the asteroid is on an impact trajectory, the regions …

2021 RR 205 is an extreme trans-Neptunian object discovered by astronomers Scott Sheppard, David Tholen, and Chad Trujillo with the Subaru Telescope at Mauna Kea Observatory on 5 …

2021 PJ1 orbits the sun every 487 days (1.33 years), coming as close as 0.80 AU and reaching as far as 1.63 AU from the sun. Based on its brightness and the way it reflects light, 2021 PJ1 …

This is the orbit for the hypothetical impact scenario that will be presented at the 2021 Planetary Defense Conference. Referenced from the PDC 2021 page.

2022年1月6日 · From the 133 successful launches, the most ever in a year, 27 humans were put into orbit as well as 1,778 spacecraft and satellites. Additionally, 16,675kg of cargo was sent to …

Explore the 3D world of Asteroids, Comets and NEOs. Learn about past and future missions, tracking and predicting orbits, and close approaches to Earth.

2024年12月18日 · The orbit of Asteroid 99942 Apophis 2021 around perihelion, in the Earth's co-orbital reference frame, as seen from above (top panel) and in the ecliptic plane (bottom …