Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The sun is in its most active phase—solar summer—causing auroras and posing real risks to satellites, GPS, and power systems ...

Researchers are discussing 2025 PN7, a small celestial body that's following a similar orbital path to our planet's without being gravitationally tied to Earth ...

The equinox occurs at the same moment wherever you are on Earth but what is it and when does it take place? Chris Fawkes has ...

NASA has discovered a new super-Earth that has a year only lasting a few hours. The exoplanet K2-141b, was found very close to its orange sun-like star, and has an orbital period of less than one ...

Most places on Earth have seasons because our planet is on a tilt as it orbits the sun. But our star also has its own version ...

Venus could make a brief appearance this weekend as it passes between the Earth and the sun. Just be warned: It won't be easy to spot in the sun's glow, according to astronomers. The orbit Venus takes ...

So the bottom line is that the gravity of the closer tidal bulge on the Earth is pulling the Moon forward, which increases ...