Firefly Aerospace's Blue Ghost moon lander caught haunting images of Earth while preparing to make its way towards lunar orbit.

Naturally, the same goes for the sunset. Since the winter solstice, the sun has been setting progressively later at a faster rate than it has been rising, which is why days are getting longer despite ...

Comet ATLAS (C/2024 G3) came within 8.3 million miles of the sun on January 13 as it reached its perihelion, and is now disintegrating.

Images captured by NASA's Solar Dynamics Observatory have revealed that "coronal loops" give off subtle flashes of ...

For a brief, but exciting, time last year, Earth had two moons. A small asteroid lingered close to our planet in its orbit ...

Saturn’s rings, imaged here by NASA’s Cassini orbiter, are one of the solar system’s most reliably spectacular sights. But ...

The Blue Ghost lunar lander, built by the Texas-based company Firefly Aerospace for NASA, launched to space on Jan. 15, and ...

Hot on the heels of a spectacular comet late last year, another celestial visitor is set to put on a show. And Southern ...

A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

So why has the sun been rising later than it did on Dec. 21? Like much of our day and night cycles, the answer lies in Earth's rotation and orbit. Yes, the sun has risen later than it did Dec. 21 ...

Because the period of an object does not depend on its mass, comets’ orbital periods remain unchanged due to mass loss.

G3 may be hard to see due to weather patterns and the California wildfires, said Tim Brothers of the Massachusetts Institute ...