Last week, three tiny Australian satellites from Curtin University's Binar Space Program burned up in Earth's atmosphere.

Saturn will undergo a drastic change in the coming months, at least as the planet is seen from Earth. Here's what's going to ...

The probe will orbit the sun "close enough to pass inside a solar eruption, like a surfer diving under a crashing ocean wave, ...

For a century, exoplanet hunters have “discovered” planets around a nearby ... an unplanned extended stay in orbit. Much of ...

Our Sun has kicked into high gear ... This is a force that disrupts their orbit and causes them to fall towards the planet's surface. Notable satellites in this region include the International Space ...

After seeing Elon Musk send thousands upon thousands of satellites into low-Earth orbit, it’s only natural to wonder, why can ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

With the Copernican revolution, the definition changed: Earth was considered a planet in its own right, the moon was demoted to a satellite, and the sun got ... a really wonky orbit and was ...

One year on the distant ice planet is 248 Earth years, and one day is 153 Earth hours. Now known as a dwarf ... is a celestial body in direct orbit of the Sun that is massive enough that its ...

The 2005 revelation set off a chain of events that led to Pluto’s still-controversial demotion from planet status the following year. But now ... orbiting the sun beyond the orbit of Neptune ...