Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show. By Katherine Kornei If our species manages to hang on ...

A NASA mission to study the heliosphere—the sun's magnetic bubble that shields our solar system—and develop a better understanding of space weather was launched from the agency's Kennedy Space Center ...

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The European Space Agency's Solar Orbiter has captured humanity's first-ever images of the sun's ...

The newborn planetary system appears to be emerging 1,300 light-years away around a baby star known as HOPS-315. Planet-forming materials were first identified using NASA's James Webb Space Telescope.