If you feel like you never have enough hours in the day to do everything you want to do, don't worry. You just have to wait ...

Our 24-hour day measures Earth’s rotation relative to the Sun, known as a solar day. This is slightly longer than Earth’s ...

For more than a century, engineers have chased new ways to turn the planet’s natural motions into usable power, from tides to ...

The workings of our solar system are roughly the same now as they have been for millions of years. Moons circle their planets, the planets circle the sun, the sun’s magnetic fields and sunspots wax ...

Scientists tracked interstellar comet 3I/ATLAS and found rotating jets in a rare sun-facing tail during its 2025 pass through the solar system.