Venus May Have Had Earthlike Plate Tectonics Billions of Years Ago

A new study makes the case that the solar system’s hellish second planet once may have…

Mars Conceals a Radioactive Sea of Magma Under Its Surface

The discovery helped to show why the red planet’s core is not as large as earlier…

The Holmdel Horn, a Cosmic Shrine in New Jersey, Stays Put

The radio telescope that discovered the Big Bang has survived a real estate battle — for…

How and When to Watch the Orionids Meteor Shower Peak

The latest potential supply of fireballs in the night sky comes from the trail left by…

Photos From the Ring of Fire Solar Eclipse

The “ring of fire” bathed eight American states, Mexico and a number of Central American countries…

When Is the Next Solar Eclipse?

Saturday’s eclipse will be followed by another in April that will cross the other end of…

‘Ring of Fire’ Solar Eclipse: Millions Across the Americas Prepare for Moments of Astronomical Awe

The experience of an annular eclipse will be shared on Saturday by people from Oregon to…

NASA’s Psyche Asteroid Mission Launch: What You Need to Know

The journey on a SpaceX Falcon Heavy rocket has been delayed this week by poor weather…

Solar Eclipse 2023: When, Where and How to Watch

The so-called “ring of fire” will grace the skies of the Western Hemisphere on Saturday. …

NASA Reveals First Pictures of Osiris-Rex Asteroid Samples

Scientists said they got more material than expected from the Osiris-Rex mission during its seven-year journey…