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Reflect Orbital and SpaceX have filed proposals with the US Federal Communications Commission that threaten ground-based astronomy. We submitted replies and collaborated with the UK Royal Astronomical Society & the International Astronomical Union for their responses. 1/
#astrodon #astronomy #astrophysics #space #science
15% of asteroids near Earth actually have small moons orbiting them. Images taken by NASA's DART spacecraft have been examined and found that such asteroids are transferring material between each other. In a gentle collisions they are actively exchanging rocks and dust. The cause is sunlight which makes them spin faster and enabling material to fly off. Some of this material forms moons.astrobiology.com/2026/03/new-n…
New NASA DART Mission Data Reveals that Asteroids Throw 'Cosmic Snowballs' at Each Other - Astrobiology
About 15% of asteroids near Earth have small moons orbiting them, making binary asteroid systems common in our cosmic neighborhoodKeith Cowing (Astrobiology)
On the front page of spaceweather.com today: "Last month, astronomer Gerald Rhemann attempted to photograph Comet Wierzchoś (C/2024 E1) during its closest approach to Earth. The comet was outnumbered 10:1 by #satellites.
"It's about to worsen. Right now, Earth is surrounded by almost 10,000 Starlinks with future plans calling for 42,000. Amazon’s Project Kuiper has begun launching its own planned 3,200-satellite broadband fleet, while China is building two more megaconstellations: Guowang (13,000 satellites) and "Qianfan" ("Thousand Sails", 15,000-plus). Together, they could eventually rival Starlink or even surpass it."
IOTA/ES - Call for Observations:
Trans-Neptunian object (523738) 2014 SH349 will occult a 12.5 mag star UCAC4 498-006441 on 2026 Mar 05, ~21:15 UT. The expected maximum duration will be 23 s.
23 stations across Europe will try to observe the stellar occultation.
Extended error limits! Please observe all over Europe!
Details here:
cloud.occultwatcher.net/event/…
#occultation #space #astronomy #asteroid #citizenscience
