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 ...

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

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

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 ...

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 ...

This infrared video was recorded over a U.S. military platform in 2025. It shows 6 small apparent “spheres or orbs” making changes in direction and moving at an estimated 480 miles per hour (770 kph), ...

Earth flies between the sun and Saturn on October 4, 2026. Our motion brings Saturn to its brightest and closest for the year. EarthSky’s Deborah Byrd wants to tell you how to see Saturn at opposition ...

Visible planets and night sky guide. Look for the 3rd quarter moon tomorrow morning. And Venus is disappearing for now. Watch a video here. Mars calendar year 39 begins on September 30, 2026. If ...

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 ...

Saturn is the most gasp-inducing planet when viewed through a telescope. And it’s currently providing its best views of 2026 as it reaches its October 4 opposition. Saturn looks starlike to the eye ...

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 ...

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 ...