Smithsonian National Postal Museum, Washington, D.C.

Astronomers have observed circumstellar disks as well as planets in orbits around stars other than the Sun before, but never a planet being assembled in a circumstellar disk. The direct imaging of ...

A mysterious celestial body speeding through the solar system and shedding metals was captured in July by the Very Large Telescope in Chile, one of five developed by NASA to detect objects that might ...

Researchers at the University of Hawaii at Manoa’s Institute for Astronomy have discovered why it rains on the sun. Unlike water that falls from the sky on Earth, solar rain happens in a region of ...

On this month’s episode of The Sky Above, host Leah Pezzetti discusses upcoming astronomical events and also the race to space.

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can absolutely solve.” ...

These so-called Venus co-orbital asteroids are currently undetected because of their alignment in the sky but could one day drift into Earth’s path, at least according to simulations combining ...

This meteor shower is noted for its bright, fast meteors that leave trails that can linger in the sky for a few minutes.

October is a star-studded month with two meteor showers, winter constellations and a good chance to see a trio of green comets.

The ISS feels impossibly far at 250 miles up, but lunar missions go 240,000 miles out - over 1000x the distance. It's a perspective shift that redefines what 'space travel' means.

The European Space Agency (ESA) is repurposing its fleet of spacecraft around Mars and the Sun to track 3I/ATLAS, a rare interstellar comet, as it slips out of view from Earth during a three-month ...

In spectacularly good timing a coronal mass ejection (CME) from the Sun is about to collide with an object which came from outside of the Solar System. On July 1, 2025, astronomers spotted an object ...