SUNSET: 
ALMA Pans for Galactic Gold in the Hubble Ultra Deep Field
ALMA, the largest telescope array in the world, took a look at the Hubble Ultra Deep Field, and revealed the cosmic history of star formation.
FAST Radio Telescope Open for Business
China recently unveiled FAST, the world's largest single dish radio telescope.
Daily Alert for Asteroid Flybys
A new e-digest from the International Astronomical Union’s Minor Planet Center gives the public a head’s up on passing asteroids.
We Crossed the Equinox September 22nd
The fall equinox (spring equinox for the Southern Hemisphere) comes on September 22, 2016, at 4:02 p.m. Eastern Daylight Time (20:02 UT).
Did Ancient Explosions Rock Eta Carinae?
New observations suggest this unstable star let off some steam before its famous 19th century “Great Eruption” . . . but there’s more to the story than meets the eye.
Hubble Watches as Comet 332P Breaks Apart
Back in January, a team of observers had a hunch that Comet 332P/Ikeya-Murakami was rapidly falling apart — and they were right!
Huge Meteorite "Gancedo" Found in Argentina
A team in Argentina unearths a spectacular space rock, possibly the world's third largest single find.
A Harvest Moon Penumbral Eclipse
Skywatchers in the Eastern Hemisphere will see tonight's full moon skirt through Earth's dusky outer shadow.
Curiosity's View of Wind-Sculpted Sandstone
NASA's Curiosity rover took time out from its exploration of Mars to capture some dramatic layering in sandstone cliffs.
A Galaxy Cluster Caught in Transition?
Astronomers have caught a galaxy cluster in the prime of its life — perhaps just before it transitions to retirement.
Gaia Mission Maps 1 Billion Stars
The European Space Agency's Gaia mission has released its first data release, mapping a billion stars across the Milky Way and beyond
Osiris-REX is Bound for Asteroid Bennu
NASA's Osiris-REX spacecraft launched successfully from Cape Canaveral on September 8th and is headed to asteroid Bennu for a dramatic sample return mission.
Juno Makes First Science Pass at Jupiter
On August 27th, NASA's Juno made its closest pass to the giant planet — here's what we learned.
Finally, ESA Locates Comet Lander Philae
It's taken nearly two years, but a dedicated search of craggy Comet 67P/Churyumov-Gerasimenko has turned up the long-lost landing craft Philae.
Annular Solar Eclipse Wrap-Up
The annular solar eclipse visible over south-central African and parts of the Indian Ocean was a dazzling crowd pleaser!
Tour September's Sky: Mars, Saturn & Venus
Early evening features Mars and Saturn toward south, but keep an eye out for brilliant Venus climbing up from the west during twilight.
Thursday's Annular Solar Eclipse
The Sun's second coverup of the year will be an annular solar eclipse whose path crosses south-central Africa and northern Madagascar on September 1st.
Why Galaxies Have Spiral Arms
Astronomers have found a unique trait of spiral arms that supports a longstanding idea about where these patterns come from.
Could Spacecraft Make it to Proxima Centauri?
Dust and gas between stars would pose a threat to spacecraft en route from Earth to the Alpha Centauri system — and scientists are seriously considering the problem now that the prospect of interstellar travel is no longer sci-fi.
Exoplanet Found Around Proxima Centauri
Astronomers have discovered a planet in the habitable zone of the closest star to the Sun.
