On October 10, 2020, a near-Earth asteroid was spotted for the first time. Now, two years later, the airplane-sized object is returning for a visit that will bring it within 400,000 miles of Earth.

If you spied a fiery red star close to the full moon earlier this month, it was actually Mars shining its bright red light in the night sky. The planet will be visible at night throughout October, ...

NASA, NOAA and Berkeley Earth all released their assessments of Earth's temperature in 2020 on Thursday. The conclusion: 2020 was nearly tied with 2016 for the warmest year globally on record. NOAA's ...

If you spied a fiery red star close to the full moon over the weekend, it was actually Mars shining its bright red light in the night sky. The planet will be visible at night throughout October, ...

The Earth's 28 fastest days on record (since 1960) all occurred in 2020. The Earth's rotation can change slightly because of weather and ocean patterns. A negative leap second will be needed if the ...