The United Nations' Office of Outer Space Affairs is considering issues of light pollution spanning from streetlights to satellites.
What seemed a lucky break — the discovery of a gamma-ray burst in the most distant known galaxy — might instead be the flash of passing space debris. As satellites fill low-Earth orbit, such events might become common.
Astronomers use cosmic magnifying lenses to peer into the universe's distant past.
Some 10 million years ago, dying stars cleared a giant cavity in space and ultimately inspired a new generation of star formation.
This week in astronomy news, we learn that some white dwarfs still burn and image X-rays from black holes almost 12 billion light-years away.
This week in astronomy news: A citizen scientist happens upon a weird, ancient brown dwarf and astronomers discover that Sun-like stars eat their own planets.
Four concepts are competing to be NASA’s next flagship mission. From exo-Earths to X-rays, what will the future hold?
A study of 36 dwarf galaxies within a volume of space spanning 13 million light-years show they all have remarkably similar histories despite the vast distances between them.
The CHIME telescope has released its first catalog with 492 unique sources of fast radio bursts, the brief flashes of radio waves that have been intriguing astronomers over the past decade.
This week in astronomy pictures: Peer into our galaxy's busy core, watch Clyde's Spot unravel at Jupiter, and see a stunning Hubble photo of a lopsided galaxy.