With the first images from the spacecraft now in hand, the team behind NASA’s Star-Planet Activity Research CubeSat, or SPARCS, is ready to begin charting the energetic lives of the galaxy’s most ...

Earth’s gravity has a lot to do with what people think is up and what is down. Things fall down toward the ground, but that direction depends on where you are.

Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its gaseous neighbors, possibly after much of the ...

Astronomers have caught what may be a rare cosmic catastrophe unfolding 11,000 light-years away. A seemingly ordinary sun-like star suddenly began flickering wildly, puzzling scientists until they ...

Tzanidakis was combing through old telescope data from 2020 when he found an otherwise boring star acting very strangely. The ...

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 CuriousKidsUS@theconversation.com. What is below Earth, since space is present in ...

Who’s ready for a “planet parade”? The last planetary alignment was in August 2025, when six planets aligned and four were ...

How to see the February 2026 parade of planets. Which planets will be visible on Feb. 28? Which will be easiest to see? Which ...

The occasion will see Mercury, Venus, Saturn, Jupiter, Uranus and Neptune align, with some of the planets visible to the naked eye.

Despite the dramatic name, these alignments aren’t exceptionally rare. The last six-planet parade occurred in January 2025, ...

Want to catch a glimpse of the planetary alignment from Florida? Here's what to know, including a list of official dark sky locations in the state.

Nearly all of the planets in the solar system are about to march through the night sky in a single-file line. This planetary alignment, sometimes called a planet parade, will include all of the solar ...