At incredibly small scales, the universe operates according to the unfamiliar rules of quantum mechanics. And Planck’s ...

Spot the Broken Engagement Ring asterism near Merak in Ursa Major, easily viewed with binoculars or a low-power telescope.

Today in the history of astronomy, a star is captured in an astrophotography first.

Early birds can catch our satellite just 3° from two giant planets in Pisces: lovely ringed Saturn and far distant Neptune.

NWA 16788 is the largest martian meteorite ever found, weighing in at 54 pounds. Soon, it’ll be up for auction.

The center of our galaxy is visible overnight on summer evenings, just off the tip of the Sagittarius Teapot’s spout in the ...

While astronomers expect many supernova remnants remain to be discovered, the fact that Teleios was spotted at all “is pure luck,” Filipović says. Had it been located closer to the galactic plane, ...

Australia aims for orbit with the Gilmour Eris rocket, while SpaceX launches Starlink and Kuiper satellites, and Europe ...

At a time of turmoil and competing visions for the agency, NASA will be led by a Trump administration cabinet member.

M4 is a globular star cluster in the Scorpius constellation. Antares, Scorpius' brightest star, helps locate M4. M4 is visible to the naked eye, but a telescope shows more detail. Good luck!

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this week.

Trump’s Big Beautiful Bill adds $9.9 billion to NASA’s budget, reversing plans to cut the Space Launch System and Orion.