SUNSET: 
Euclid Space Telescope Launches to Explore Dark Energy, Dark Matter
The European Space Agency’s new space telescope promises to unlock a key mystery of modern cosmology.
This Week's Sky at a Glance, June 30 – July 9
Full Moon in the Teapot. Are the colors of brights easier to discern in moonlight? Twilight? Mars closes in on Regulus as Venus watches. And the supernova in the Pinwheel Galaxy is still 12th magnitude.
Milky Way's Central Black Hole Flared 200 Years Ago
A glowing molecular cloud shines today because of a 200-year-old flare let out by our galaxy’s supermassive black hole, scientists say.
Gravitational Waves from Supermassive Black Holes Revealed
Radio observatories across the globe have found compelling evidence for the existence of very-low-frequency gravitational waves.
Did an Asteroid's Collision Make the Geminid Meteor Shower?
Parker Solar Probe data offers new insight on the puzzle of how debris from an asteroid produces one of the brightest annual meteor showers.
Explore the Night with Bob King
See Summer's Best “Gobbled” Globulars
Mergers between the Milky Way and long-ago dwarf galaxies have enriched our skies with dozens of iconic globular clusters. Many are visible in small telescopes.
Exoplanet News: No Air on Venus Twin, Young Jupiter Discovery
Astronomers have discovered Jupiter's younger sibling in a system 88 light-years away. Meanwhile, only 40 light-years away, a Venus-size world turns out to be airless (or nearly so).
This Week's Sky at a Glance, June 23 – July 3
Venus almost meets Mars in the western twilight, then runs away. Vega and Arcturus become equally balanced across the zenith. Down from Vega hangs the Summer Triangle.
Webb Telescope Tracks Universe's First Light
New results from the James Webb Space Telescope find that radiation from ordinary galaxies cleared the primordial haze left over from the Big Bang, allowing the first light to shine through the early universe.
The Newest and Largest Starlink Satellites Are Also the Faintest
Despite being four times larger than the original Starlink satellites, the new "Mini" version is fainter — as dim as astronomers have recommended such satellites be.
BepiColombo Mission Makes Third Mercury Flyby
The Mercury-bound BepiColombo Mission made its third flyby past the solar system’s innermost world on June 19th.
Even Lonely Black Holes Need to Eat
Astronomers have found supermassive black holes in smaller galaxies are actually more likely to light up when they’re isolated in vast, cosmic voids.
Phosphates Swim in the Ocean of Saturn's Moon Enceladus
Scientists detected phosphorous in an extraterrestrial ocean for the first time when they analyzed data from Saturn's moon Enceladus.
Signal Found from Supermassive Duo's Second Black Hole
Astronomers have long suspected that a distant quasar harbors not one but two supermassive black holes. They've now detected OJ 287's second black hole.
This Week's Sky at a Glance, June 16 – 25
Venus and Mars are getting closer together in the western dusk. And why does Mars always turn so puny when it approaches Venus? The "Betelgeuse of Summer" is up, and the Little Dipper stands on end.
Eking Out Observing from under Wildfire Smoke
Smoke from Canadian wildfires has made observing the night sky a challenge for many. Here are some ways you can make the best of a bad situation.
Parker Solar Probe Detects Source of Solar Wind
The Sun flings charged particles and accompanying magnetic fields into the solar system, but how? NASA's Parker Solar Probe dives in to find out.
Could Supermassive Stars Explain How This Galaxy Got Its Nitrogen?
Supermassive stars might explain the unusual amounts of nitrogen in one of the most distant known galaxies, GN-z11.
How Soon Will Betelgeuse Blow?
A new study making the rounds predicts that supergiant Betelgeuse will explode as a supernova sooner rather than later, but others are urging caution.
This Week's Sky at a Glance, June 9 – 18
Now it's Venus's turn to pass the Beehive, with Leo looming over. The Summer Triangle lofts high. And the supernova in M101, near the Big Dipper, remains 11th magnitude.
