The mysterious Oort cloud is the source of many of our solar system's comets, but astronomers still have no idea what it ...

The U.S. Space Force has unveiled a first-of-its-kind orbital photograph of the classified X-37B space plane. Captured by the vehicles onboard camera, the image reveals one of its solar arrays and an ...

Stark residents will be able to view a total lunar eclipse March 13-14, but won't see the solar one a few weeks later.

A fierce solar storm in May 2024 did more than disrupt GPS — it created two new radiation belts. A revived CubeSat captured ...

While the U.S. Space Force, and its previous operator the U.S. Air Force, have been tightlipped about what the space plane ...

The “NOM4D” project will undoubtedly be a boon for the nascent private space sector, but it could also have real strategic ...

Rocket Lab launched a high-resolution Earth-imaging satellite toward low Earth orbit this evening (Feb. 18). An Electron ...

Imagine a field of solar panels floating silently in the endless day of Earth’s orbit. Unlike their terrestrial cousins, this ...

ESA's Solar Orbiter captured a "tube of cooler atmospheric gases snaking its way through the Sun’s magnetic field," according ...

The European Space Agency (ESA) is ready to guide the ESA/NASA Solar Orbiter spacecraft through its closest encounter with ...

Clyde Tombaugh discovered Pluto in 1930 at Lowell Observatory in Flagstaff. Here's how Pluto won - and lost - its planetary status.

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.