The winner of Fat Bear Week 2026 is … Backpack! The people voted him the chonkiest chunk at Katmai National Park this season. He’s the son of former 2019 winner, Holly. Congrats, Backpack! Image via ...

The changes in temperature and vertical structure of the atmosphere are the two main processes that affect the weather on ...

The Komodo dragon ( Varanus komodoensis) is the largest living lizard on Earth. The biggest males can exceed 10 feet (3 ...

Hurricane Nolo is strengthening south of Hawaii, with forecasters warning that the storm could bring potentially catastrophic ...

Artist’s concept of a future moon base. A new study suggests there would be enough water on the moon for smaller bases, villages or towns, but not larger cities. Image via ESA. Elvis and fellow ...

In 2020, NASA and the U.S. Department of State led an effort to establish guidelines for human expansion into space. Working with international partners, they came up with the Artemis Accords. NASA ...

Our charts are mostly set for mid-latitudes in the Northern Hemisphere. To see a precise view — and time — from your location, try Stellarium Online. October 4: Saturn’s opposition is near Our sun’s ...

A member of the newly discovered tiger cat species — Leopardus tilcayo — at La Senda Verde, a private wildlife refuge in the Yungas region of Bolivia. This little cat, a male, was previously kept by a ...

The JUICE mission captured this view of Earth during its flyby on September 28, 2026. JUICE passed within 5,369 miles (8,640 km) of the Indian Ocean. In this image we can see Africa and the island of ...

Visible planets and night sky guide. Join us for a livestream at noon CDT (17 UTC) on Wednesday, September 30. We are saying goodbye to evening Venus! The JUICE mission made a successful flyby of ...

The moon is up in the daytime half of the time. But, because it’s pale against the blue sky, it’s not as noticeable during the day as at night. Still, there are certain windows each month during which ...

The Andromeda Galaxy is the closest large spiral galaxy to our own Milky Way galaxy. Excluding the Large and Small Magellanic Clouds — both visible from Earth’s Southern Hemisphere — the Andromeda ...