The sun's ascent above Earth's horizon is observed from the International Space Station, marking the approaching peak of ...

Right now, Earth is about 3.1 million miles farther from the sun than it is in early January when it reaches perihelion, its closest point. Compared to its average distance of 93 million miles, that’s ...

This discovery marks the first known case of a compact planetary system with such a noticeable tilt between close planet ...

Since Kepler's laws of motion dictate that celestial bodies orbit more slowly when farther from the sun, we are now moving at ...

On Jan. 4, Earth received its maximum radiation from the sun, which was at its largest in the sky for 2025. The difference isn't huge — the sun today appears to be a mere arcminute (1/60th of a degree ...

By discovering carbonate rocks, NASA's Mars rovers may have unlocked the key to understanding the fate of the Red Planet's ...

Summer began 84 million years ago, when the earth’s axis tilted twelve degrees. Before that, there were no seasons. We don’t ...