An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

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.

Earth goes between the sun and Saturn once in nearly every earthly year. That’s because we take a year to orbit the sun, while Saturn takes nearly 30 years. This animation from Lowell Observatory (not ...

Congrats to Backpack, the winner of Fat Bear Week 2026! Take a look at the final brackets and see where your favorite fatties fell. Researchers at the University of Massachusetts Amherst said the bare ...

Curiosity rover has now spent 5,000 sols — the equivalent to 5,000 Martian days, or more than 14 years — on Mars. Here's a look at some of its discoveries. The September equinox is almost here! Autumn ...

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 ...

What is a Harvest Moon? Plus, how can you see this 2026 Harvest Moon near Saturn? EarthSky’s Deborah Byrd has more. Watch in the player above or on YouTube. When and where to look in 2026: Look for ...

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

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 ...

You cannot see the 8th planet from our sun, Neptune, with your eyes alone. Here’s how NASA’s Voyager 2 spacecraft — the 1st and only craft ever to visit Neptune — saw it in 1989. Image via NASA. Read ...

The Big Dipper is a famous and beloved group of seven bright stars. It’s normally easy to find. So what if you can’t find it? In the northern autumn months, the Big Dipper rides low in the northern ...