SUNSET: 
Maunakea Observatories Shuttered Amid Protests (Update: Observatories Have Reopened)
As protests against the construction of the Thirty Meter Telescope continue, the directors of Maunakea Observatories have taken the unprecedented move of closing all observatories atop the mountain.
Tension Over Hubble Constant Continues
A new measurement fuels an ongoing debate about the rate at which today’s universe is expanding.
German-Russian Astronomy Satellite Launches
Spektrum-Röntgen-Gamma, a long-delayed and much-modified X-ray astronomy package, launched successfully from the Kazakh Steppe on Saturday.
Thirty Meter Telescope Set to Begin Construction
Hawaiian Governor David Ige and the Thirty Meter Telescope International Observatory have announced that construction of the Thirty Meter Telescope will begin the week of July 15th.
Sky-surveying Telescopes Sweep Up Near-Earth Asteroids
Discoveries include a near-Earth asteroid with the shortest “year” and another found hours before it burned up in Earth’s atmosphere.
Astronomers Identify Host Galaxy of a Third Radio Flash
Astronomers have narrowed down the location of a third "fast radio burst" to a galaxy very like the Milky Way.
The Astronomers' Eclipse: July 2nd Eclipse Will Pass Over Professional Observatories
Some of the world's largest telescopes will be watching as the Moon blocks the Sun's disk and reveals its corona on July 2, 2019.
We’re Going to Titan! Dragonfly Drone Will Explore Saturn’s Biggest Moon
NASA has selected its next New Frontiers mission: Dragonfly, a rover-sized drone will begin ‘coptering around Titan in 2034.
Astronomers Pinpoint New Fast Radio Burst
A next-gen Australian radio array has enabled astronomers to home in on the source of a mysterious fast radio burst — and the source is not what they expected.
Curiosity Detects Big Whiff of Methane on Mars
The Curiosity rover on Mars detected the highest level of methane yet, but a follow-on experiment saw those levels recede within a week. Scientists are working to understand the significance of the result.
Exploring the Solar System: Mission Updates
Space agencies have selected two solar missions and a “comet interceptor” for development and launch.
Did a Dwarf Galaxy Crash into the Milky Way?
A recent study suggests the dwarf galaxy Antlia 2 had a long-ago run-in with our galaxy, rippling and warping its disk. But not everyone agrees with that scenario.
7 Incredible Discoveries from Two Decades of X-rays
On the eve of the 20th anniversaries for both the Chandra and XMM-Newton X-ray observatories, we celebrate with a look back at seven of their most incredible discoveries.
Evidence for a Dark Matter Clump in the Milky Way
There are ghosts in our galaxy’s past. Now astronomers have found a way to detect them.
Astronomers Directly Detect Newborn Planets
Infant planets are coming together in a system 370 light-years away, and they’re shedding light on the early lives of Saturn and Jupiter in our solar system.
Astronomers Dream Big, Consider Four Future Space Telescopes
Four concepts are competing to be NASA’s next flagship mission. From exo-Earths to X-rays, what will the future hold?
Found: Exoplanet in the "Neptunian Desert" & Exocomets Around Beta Pictoris
Two teams of astronomers have announced the discovery of a Neptune-size planet in an unexpected orbit and three exocomets whizzing around nearby star Beta Pictoris.
Was ‘Oumuamua a Fragment from a Disintegrated Comet?
A new study suggests that ‘Oumuamua’s strange trajectory back out to interstellar space can be explained if the object had the density of air.
Our Quiet Galaxy Used to Burst with Stars
New research shows that our quiet, middle-aged galaxy used to be quite the firecracker — a couple billion years ago it was exploding with new stars.
Gravitational-wave Detectors Come Online, Find Possible Black Hole-Neutron Star Crash
Only a month into a new observing run, gravitational-wave observatories have announced five new signals — one of which could turn out to be a black hole swallowing a neutron star.
