SUNSET: 
Does This Star Cluster Host a Black Hole in Its Core?
The well-known star cluster Messier 4 might have an elusive, midsize black hole hidden at its center, but the evidence isn’t conclusive yet.
Astronomy in Space with David Dickinson
United Arab Emirates Announces New Mission to the Asteroid Belt
An ambitious new mission from the United Arab Emirates would fly closely and speedily by seven main-belt asteroids.
This Week's Sky at a Glance, May 26 – June 4
Venus starts the week under Pollux and Castor, then lines up with them. Nearby, Mars steps on the Beehive. In the south the Bootes kite flies high.
Red Galaxies at Night, Astronomers' Delight: A Look at the “Hubble-Dark” Universe
JWST images of early galaxies have turned up a population of flat, red disks that may have been entirely missed by previous surveys.
The Sun Gets Its Close-up: Images from New Solar Telescope
The Daniel K. Inouye Solar Telescope shows some stunning detail on the Sun, including sunspots, fibrils, granules, and other solar textures.
Radio Waves Unveil Supernova Origin
Astronomers have observed an unusual supernova, in which a helium star fed a white dwarf until it exploded.
Bright Supernova Blazes in M101, the Pinwheel Galaxy
A supergiant star exploded as a supernova in the prominent galaxy M101 in Ursa Major. It's now bright enough to see in a 4.5-inch telescope!
Replay of Star’s Death Sheds Light on Universe’s Expansion
A cosmic lens magnified the light of an exploding star. Now, astronomers are using observations of that supernova to calculate the universe’s current rate of expansion.
This Week's Sky at a Glance, May 19 – 28
As Venus and Mars move toward each other in the western dusk, Venus brightens and Mars shrinks — just like they always do. This week the waxing Moon hops over both.
“Rogue Black Hole” Could Be Something Much Simpler
An unusual streak of stars thought to have formed in the wake of a wandering supermassive black hole might just be a spiral galaxy seen edge-on.
New Photos from NASA's Perseverance and Juno
NASA spacecraft are constantly sending back images from across the solar system. Here are two that caught our eye.
See the Moon-Jupiter Trifecta: Conjunction, Occultation, and Double-Shadow Transit
The May 17th dawn pairing of Jupiter and the Moon may be one of the most amazing conjunctions you'll ever see.
The Grand Canyon Star Party
Get ready for the Grand Canyon Star Party on June 10–17, 2023.
Scientists Confirm: Meteorite Crashed Into New Jersey Home
A rock that crashed through the roof of a house in New Jersey proved to be the real thing — a chunk spalled from a 4.5 billion-year-old asteroid.
The James Webb Space Telescope May Have Spotted a Baby Galaxy Merger
New JWST images reveal that one of the most distant objects ever observed is actually two baby galaxies on a possible collision course.
Mini-Neptune Reveals (Some of) Its Secrets
James Webb Space Telescope observations offer a new window inside the atmosphere of the secretive sub-Neptune GJ 1214b.
New Discoveries Double Number of "Irregular" Saturn Moons
The Minor Planet Center is announcing a bevy of new moons for Saturn that will bring its total to 145 (and break Jupiter's record).
This Week's Sky at a Glance, May 12 – 21
Mars and Venus each line up with a pair of stars this week. And with the Milky Way lying all around the horizon, the Coma Berenices Star Cluster floats overhead.
Explore the Night with Bob King
Lie Back, Look Up, and Find Your Zenith Stars
When you want to relax under the stars there's no better way than on your back looking up at the zenith. We explore what's overhead and discover there's more than one zenith up there.
The Moon Deimos Might Be a Piece of Mars
Surprising new results from the United Arab Emirates' Hope probe call the origin of Mars's smaller moon into question.
