Some galaxies hailing from the infant universe may already hold vast populations of old stars.
Space News & Blog Articles
Mercury lurks in the sunset. The July Moon rides low across the sky this week as it waxes from first quarter to full. It occults springlike Spica, then passes summery Antares to hang with the Teapot.
New supercomputer simulations reveal the journey gas takes to enter a galaxy and surround and enter its black hole. That journey holds a few surprises for astronomers.
The motions of individual stars in the core of Omega Centauri, a massive globular cluster, confirm the existence of a black hole at its core.
Dutch astrocartographer Wil Tirion will be remembered as the creator of the most beautiful star maps and atlases of our time.
A long-ago incident forged a connection with Antares, the topaz-colored star at the heart of the Scorpion.
The waxing Moon passes Regulus on its way to occulting Spica July 13th. The Kite of Boötes tilts toward the Dipper. And the largest asteroid is at opposition.
Don't miss Spica's dramatic disappearance at the Moon's dark limb. We also check in on the status of current bright comets.
A new image taken by the James Webb Space Telescope reveals a stunning alignment among the infant stars in the Serpens Nebula.
Grab your curiosity, and come along on this month’s Sky Tour. This month offers a chance to watch a dramatic coverup of the bright star Spica by the first-quarter Moon. You can also glimpse Mercury just after sunset — and Saturn very late in the evening.
A group of high school astronomy students helped confirm and characterize a planet slightly smaller than Saturn that closely orbits its star.
Jupiter hangs in Taurus between Aldebaran and the Pleiades.
Astronomers surveyed dozens of neutron stars, homing in on three that challenge most ideas about what these exotic objects are made of.
China’s Chang’e 6 mission has brought back material from the farside of the Moon.
T Coronae Borealis is a nova star that's due to suddenly — and briefly — brighten. Here's how to see this once-in-a-lifetime event.
Europe's youngest country has inaugurated its new observatory and planetarium, and folks far and away joined the festivities.
A new study follows two lines of research to suggest that that Great Red Spot we see today has not, in fact, been going for as long as we thought.
The Centaurus constellation holds some of the best southern targets, including the Omega Centauri globular cluster and the Centaurus A galaxy.
Astronomers have pressed rewind on a cosmic video of the solar neighborhood, tracing the origins of young star clusters within 3,000 light-years of the Sun.
The two brightest stars of summer balance across the zenith. Arcturus and Vega represent the two commonest spectral types, and colors, of all the naked-eye stars in the sky.
Astronomers have proposed a rather uncomfortable past for our solar system and our planet — as well as an alternative explanation for a radioactive anomaly on Earth.