Hurricane Iona now a major hurricane, south of Hawaii

Hurricane Iona and Tropical Storm Keli are the first 2 tropical cyclones of the central Pacific hurricane season. Read more about them here.

This baby exoplanet is shrinking toward a sad destiny

NASA's Chandra X-ray Observatory has found a baby exoplanet that is slowly losing its atmosphere and shrinking as it is pummeled by radiation from its star.

Eltanin and Rastaban, the Dragon’s eyes

These 2 famous stars shine down from the northern sky. Eltanin and Rastaban represent the fiery eyes of the constellation Draco the Dragon.

Did arachnids originate in the sea? A new study suggests so

We think of spiders, scorpions and other arachnids as land creatures. But according to a new study, they might have originated in the sea.

Is the 3rd interstellar visitor – 3I/ATLAS – an alien probe?

It's highly unlikely the interstellar comet 3I/ATLAS is an alien spacecraft. However, here are things scientists would look for to detect an alien probe.

Extensive ancient rivers on Mars revealed in new study

A new study of data from 2 Mars orbiters shows vast ancient rivers on Mars in the Noachis Terra region. They show Mars was even wetter than we first thought.

What is corn sweat, and is it making the heat worse?

Corn sweat is when corn releases moisture to keep cool, but it makes people sweat as it increases the humidity in the air, making days feel even hotter.

Are dogs a good judge of character? New study says maybe not

Many people think their dogs are good judges of a person’s character, but new research indicates there is no evidence that dogs form opinions of people.

Young, massive exoplanet is in an unusual double star system

HD 135344 Ab is a young massive exoplanet orbiting a star in a binary star system 440 light-years away. The other star still has its planet-forming disk.

Millions under extreme heat threat across the U.S.

Millions of people in the United States are at risk for dangerous or extreme heat on Friday, July 25, 2025, and through the weekend.