A New Crater on the Moon, and How We Know It Wasn't There Before
LRO found a 728-foot crater that formed in 2024 — the largest fresh impact scar yet spotted anywhere in the solar system.
Deep Space
Telescopes, probes, and results from a very long way out.
What the big telescopes can't see, and why that shapes what we know
Every instrument has a selection function. Most cosmic conclusions are conclusions about what was observable.