EarthSky | Updates on your cosmos and world

Are we listening for alien intelligence the wrong way?

July 26, 2026

Walking shark discovered in Papua New Guinea

Shark Week begins with a remarkable discovery: scientists have identified a new walking shark, proving the ocean still holds secrets worth protecting.

Cristina Ortiz

July 26, 2026

Astronomy Essentials

Tonight

Visible planets and night sky guide for July and August

EarthSky's visible planets and night sky guide. This evening, the gibbous moon lies within the Teapot in Sagittarius. The Teapot points to our galaxy's center.

July 26, 2026

What is the Milky Way? It’s our home galaxy

When someone says "Milky Way," do you think of the starry pathway across our sky, or of the great pinwheel-shaped galaxy in space? Both are correct!

Andy Briggs

July 26, 2026

Space

Asteroid Juno at its best now, around opposition

Asteroid Juno will be at its brightest around opposition on July 26, 2026. It'll lie in front of the constellation Aquila.

Guy Ottewell

July 26, 2026

Brightest Stars

Meet Delta Scorpii, aka Dschubba. It’s a variable star

Delta Scorpii, also known as Dschubba, is a variable star in the constellation Scorpius. With your eyes alone, you can check its brightness for yourself.

Don Machholz

July 26, 2026

Earth

Can sharks smile? It’s Shark Week! Enjoy these shark videos

Can sharks smile? Not likely. But dogs, monkeys and dolphins all show expressions akin to human smiles. Learn more about sharks during Shark Week.

Editors of EarthSky

July 26, 2026

Sun

Sun news: CME heads for Earth as flares stay low

Sun news July 26, 2026: The sun stayed quiet, but a July 24 CME is closing in. It could spark G1-G2 storms and auroras from late today into Monday. Stay alert!

July 26, 2026

Wildfires in Spain and France: 200,000 forced to flee

Raging wildfires in Spain and France have forced over 200,000 to evacuate or shelter as extreme heat and winds push uncontained blazes across both regions.

Deborah Byrd

July 25, 2026

Space

Oldest Mars meteorite reveals Mars lost its water early

A new analysis of the the oldest known Mars meteorite, Teghaza 001, reveals evidence for a granite-like crust and the start of the loss of water on early Mars.

Paul Scott Anderson

July 24, 2026

Constellations

Vulpecula the Fox lies inside the Summer Triangle

Vulpecula the Fox is a small constellation inside the Summer Triangle. Amateur astronomers go here to spot the Coathanger Cluster and the Dumbbell Nebula.

Kelly Kizer Whitt

July 24, 2026