SUNSET: 
A Star Where It Shouldn't Be
There’s a massive star in our galaxy’s halo, far away from the usual star-forming haunts. How did it get there?
Starlink Satellites Not Impacting Science — Yet
A new study of Starlink satellites’ impact on astronomy gives the community cause for both relief and concern.
Astronomy in Pictures: Largest 3D Map of Our Universe and a Stellar Intruder
This week astronomers have announced the completion of the largest 3D map of galaxies across the cosmos, plus exquisite radio observations show what happens when a stellar intruder interrupts planet formation.
1,000-light-year "Bubble" Is the Source of All Nearby Baby Stars
Supernovae that carved out the Local Bubble, a cavity around the Sun, have also triggered star formation at the bubble's edges.
The Flames of Orion and a Supergiant Star's End
Astronomers watch starbirth and stardeath, capturing a unique view of a stellar nursery and witnessing a supergiant's supernova.
Astronomers Discover Celestial Ruins on Our Galaxy’s Edge
A stream of stars scattered across 15 degrees of sky was once part of a globular cluster torn apart by our galaxy’s gravity. The stars represent some of the oldest in the Milky Way.
“Humanity Has ‘Touched’ the Sun”
On its eighth close pass, NASA’s record-breaking Parker Solar Probe entered our star’s atmosphere and “touched” the surface of the Sun.
Giant Planet Imaged Around Massive Stars
Astronomers have imaged a giant planet around a massive pair of stars, a discovery that challenges our notions of how planets form.
How Our Largest Dwarf Galaxy Keeps the Others In Line
New research may explain why satellite galaxies align themselves around the Milky Way
Can This Near-Earth Asteroid Help Us Understand the First Interstellar Visitor?
Astronomers have observed an object like ‘Oumuamua — but unlike the first known interstellar visitor, this one is in the solar system.
Astronomers Dream Big, Consider Four Future Space Telescopes
The release of the Astro2020 Decadal Survey is imminent, in which four concepts compete to become NASA’s next flagship mission. From exo-Earths to X-rays, what will the future hold?
Did We Find a Planet in Another Galaxy?
Astronomers using an innovative method have detected the signal of what could be an extragalactic exoplanet. But confirming its existence will be difficult.
The Roots of Jupiter’s Great Red Spot Run Deep
NASA’s Juno mission has obtained measurements that finally say just how deep the Great Red Spot goes.
Astronomy in Pictures: Black Holes, Baby Stars, and Magnetic "Tunnels"
Astronomers witness the unfurling of a black hole-powered mushroom cloud, a baby super-Jupiter, and a magnetic "tunnel" around the solar system.
Streetlights to Satellites: Taking Light Pollution to the United Nations
The United Nations' Office of Outer Space Affairs is considering issues of light pollution spanning from streetlights to satellites.
Did Astronomers See a Distant, Dying Star? Or an Earth-bound Satellite?
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.
What Is a Quasar?
A quasar is a supermassive black hole gorging on gas in the heart of a distant galaxy.
60-second Astro News: Magnified Galaxies Provide Window to Early Universe
Astronomers use cosmic magnifying lenses to peer into the universe's distant past.
Supernova Blasts Hollowed Out "Giant Cavity" in Space
Some 10 million years ago, dying stars cleared a giant cavity in space and ultimately inspired a new generation of star formation.
60-second Astro News: Solving Supernova Mysteries
This week, astronomers have solved one supernova mystery and predicted a new one — to be solved in 2037.
