Large galaxies, like the Milky Way, attract smaller galaxies. Our solar system 's cosmic neighborhood spans 100,000 ...

Recent data from the James Webb Space Telescope (JWST) suggests that a planet orbiting a small, red star 35 light years away ...

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

Four huge asteroids — and a fifth that's much smaller — are passing Earth on Thursday in their closest approaches to the ...

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 ...

Scientists have developed a new method to compute how tides affect the interiors of planets and moons. Importantly, the new ...

This is a distinction created by humans to break up all the ways an object might orbit our planet. How it's defined can vary somewhat, but we are talking about space immediately outside the ...

The skyscraper-sized rock will travel by the planet from a point 2.8 million miles away, NASA said. A diagram shows its orbit around Earth, the sun and several other planets nearer the sun in the ...

All of this is taken into account in a common type of diagram called the "pork chop ... possibly go if your aim is to eventually orbit your target planet. Spacecraft need to arrive slow enough ...

That means astronomers will have to get to work, hunting for more asteroids that share an orbit with the sixth planet from ...

Four "potentially hazardous" space rocks, which are between 100 and 580 feet across, will all make their closest approaches ...

It sounds like something out of a science-fiction movie. For the past couple of weeks, Earth's orbit has been home to a "mini-moon" the size of a city bus. The celestial object is more than just a ...