Light’s finite speed helped astronomers pinpoint the location of the “inner wall” of the disk of dust and gas that’s feeding a fast-growing baby star.
Astronomers just discovered three planets, two of which are roughly the size of Earth, orbiting a dim nearby dwarf star. Their proximity makes their atmospheres ripe for observing.
It’s a bird! It’s a plane! It’s a . . . pair of hypervelocity stars? The surprising stellar duo may place constraints on the mass of our galaxy’s unseen dark matter halo.
The Kepler team unexpectedly found the planet-hunting spacecraft in emergency mode on April 7th, but with the spacecraft recovered, hopes are high that its newest search, this time for rogue planets, is still on. Read on to see how amateur observations can help!
Astronomers using the ALMA array of radio dishes have detected a dwarf galaxy 4 billion light-years away by the pull of its dark matter.
In breaking news today, astronomers have discovered Pi in the sky, proposed a revolutionary search for extraterrestrial environmentalism . . . and oh yes, April Fools’!
A new thermal map of a super-Earth exoplanet is puzzling astronomers.
Astronomers studying the infrared glow that pervades the universe have pinned down its source: dusty, faint, and faraway galaxies.
The motions of thirteen stars in our galaxy’s halo outline a shell-like structure, perhaps the remains of an ancient galactic collision.
Astronomers using the Hubble Space Telescope have measured a precise distance to a galaxy dwelling in the cosmic dawn.
A stunning submillimeter mosaic of the Milky Way Galaxy captures a portrait of the cold dust and gas swirling along the galactic plane.
New observations from the Hubble Space Telescope are helping characterize the atmospheres of exotic planets such as 55 Cancri e.
The largest national association of astronomers is now the new home of a virtual observatory known as the WorldWide Telescope.
When a quasar, a black hole-fueled beacons that shines from across the cosmos, went dark, astronomers set out to find out why.
The most luminous supernova ever discovered, ASASSN-15lh, challenges a popular theory for blazingly bright exploding stars.
Astronomers have created an age-map of 70,000 stars spanning our galaxy, ushering in a new era of galactic archaeology.
An innovative and tiny thruster design could prove the future of interplanetary exploration with the tiny satellites known as CubeSats.
For the first time, astronomers have predicted the appearance of a supernova.
Astronomers studying hot Jupiter exoplanets revealed when and how clouds form on these alien worlds.
A new study shows that about half of Kepler’s giant exoplanet candidates aren’t real planets. But astronomers expected this.
A new computer simulation provides a brief glimpse at what makes stellar bombs tick.
Astronomers at the Extreme Solar Systems III conference announced several exciting results this week.
Astronomers have spotted what appears to be a regular signal coming from the blazar PG 1553+113.
High-mass stars may outshine and outweigh the Sun, but observations show all stars may have had a similar beginning.
The presence of stars just 100 million years old in the Milky Way Galaxy’s central regions confirms our galaxy’s nonviolent past.