An unseen object—probably a black hole—orbits with two normal stars in our cosmic neighborhood.
astronomy
More Than Just Astronomy: Radio Telescopes for Geophysics
Linking an existing network of radio telescopes with satellite radar would make it possible to measure ground displacements in a globally consistent way, scientists propose.
Interstellar Interloper Borisov Looks Like a Regular Comet, for Now
A first look at the chemical composition of the interstellar comet Borisov reveals ingredients that look a lot like those found in solar system comets. That’s not likely to last very long.
AGU and AAS Join Forces to Foster Understanding of Exoplanets
Enhanced cooperation between organizations representing astronomers and Earth and space scientists will build upon interdisplinary work already bridging geophysics and astronomy.
Looking to the Future of Exoplanet Science
Upcoming missions seeking to unravel the secrets of exoplanets abound. An informal survey of astronomers revealed which of those projects they most eagerly await.
Vera Rubin (1928–2016)
A luminary's luminary, Rubin shed light on the existence of dark matter, blazed a trail for women in science, and inspired and guided subsequent generations of scientists.
Telling Others About the Science of Earth and Sky
Those seeking to learn about Earth and space science can access quality information through these online portals.