Northrop Grumman sends up its robotic satellite mechanic, SpaceX tries again for Starship Flight 13 after a last-second abort ...

Tonight, the waxing crescent Moon will look just as it did on the night of July 20, 1969, when humans first set foot on our ...

Time travel back to 1969 as the exact same lunar phase appears in the July 20 sky as Earth saw when astronauts first stepped ...

The Sky This Week from May 15 to 22: The Moon greets Jupiter and Venus ...

See the Moon as it looked on July 20, 1969. Plus, check out Comet Tempel 2 as planet Mercury stands still in the sky this ...

The solar system is a dynamic place, and objects located 180° from a planet don’t stay that far from the planet for long. The reason is the differences in their orbits. Orbits come in all shapes and ...

Planetary nebula 6563 is a worthy challenge for larger scopes, floating near the base of the Teapot asterism in Sagittarius ...

Looking for a sky event this week? Check out our full Sky This Week column. July 17: The Moon skims south of Venus. Comet 10P ...

China's asteroid sample-return probe has closed to within 20 kilometers of 469219 Kamoʻoalewa, kicking off its science ...

The European Space Agency telescope’s discovery of 31 ancient quasars gives astronomers their first look at black holes from ...

Everyone can watch a small moon skim Saturn’s northern pole, while advanced imagers may catch its shadow on the cloud tops.

Look up this evening to find the season’s most famous asterism, the Summer Triangle, with the plane of the Milky Way running ...