Apsis

Learn about the unique aspects of the Pink Moon, the upcoming full moon that will illuminate the night sky as a micromoon on April 12, 2025.

The April 12 full moon is known as the Pink Moon. It will also be a micromoon. Here's how to see it.

The hefty space rock 2014 TN17 is large enough to wipe out a city, but it will pose no risk to our planet when it sails by this Wednesday (March 26). Researchers will monitor it carefully during its close approach.

Musk's father claims to have been influenced by the novel when naming Elon, but the book wasn't published until 2006.

Even by the standards of Io, the most volcanic celestial body in the solar system, recent events observed on the Jovian moon are extreme.

NASA astronaut Don Pettit has snapped a striking shot of the super-bright comet racing past our planet for the first time in 160,000 years, as it lit up the night skies across the globe.

On Monday night you may have a chance to witness the moon obscuring the Red Planet at its brightest, as well as a comet's closest approach to the sun.

Getting a spacecraft to another star is a monumental challenge. However, that doesn't stop people from working on it. The most visible groups currently doing so are Breakthrough Starshot and the Tau Zero Foundation, both of whom focus on a very particular type of propulsion-beamed power.

A new American human-rated spacecraft made its first foray into space on Dec. 5, 2014. Under contract to NASA, Lockheed Martin builds Orion as the vehicle to

The last supermoon of 2024 will come out for peak viewing on Friday, November 15. Here's everything to know about the Beaver Moon.

November's full Beaver Moon will be the final of four consecutive supermoons in 2024.

A rare, bright comet will be visible in October, clear skies permitting

A recently discovered comet, named C/2023 A3 Tsuchinshan–ATLAS, makes its closest approach of Earth on Saturday. The comet's next appearance may be in 80,000...

The Draconid and Orionid meteor showers will both peak in activity this October.

An ancient object passes through.

A comet that has not been seen for more than 80,000 years is expected to be visible from Earth, potentially during two separate time periods in the next month.

When the International Astronomical Union announced in 2006 that Pluto was being demoted from its status as the sun's ninth planet, many astronomers and non-experts alike were shocked.

The moon will be bigger, brighter and also tinged red, just in time to help kick off the spooky season.

Phaethon is a weird asteroid that behaves like a comet. It's also responsible for the Geminid meteor shower. Find out how it does so, here. The post How asteroid Phaethon can spawn the Geminid meteors first appeared on EarthSky.

Voyager 2, NASA's longest-running mission, explored Neptune during a historic encounter on Aug. 25, 1989, sending back humanity's first close-ups of the planet.