Late Heavy Bombardment

Did Some of Earth’s Water Come from the Solar Wind?

The source of Earth's water is an enduring mystery that extends to exoplanets and the notion of habitability. In broad…

1 month ago

How Oumuamua Changes Our Perspective on Galactic Panspermia

Panspermia is an innately attractive idea that's gained prominence in recent decades. Yet, among working scientists, it gets little attention.…

4 months ago

The Giant Planets Migrated Between 60-100 Million Years After the Solar System Formed

Untangling what happened in our Solar System tens or hundreds of millions of years ago is challenging. Millions of objects…

8 months ago

The Meteorites That Made Earth Were Filled With Water

According to the most widely accepted scientific theory, our Solar System formed from a nebula of dust and gas roughly…

11 months ago

Did Powerful Asteroid Impacts Make Venus So Different From Earth?

A new study connects impacts during Venus' early history to its smooth and "youthful" appearance today.

1 year ago

Venus Needed Asteroid Impacts to Get its Volcanoes Going

Unlike Earth, Venus lacks the plate tectonics that give rise to volcanoes. But the surface of Venus looks far younger…

1 year ago

How are Mars Rocks Getting “Shocked” by Meteorite Impacts?

A new NASA study shows how samples obtained by Perseverance could have been shaped by asteroid impacts when Mars was…

2 years ago

Mars Once had Enough Water for a Planet-Wide Ocean 300 Meters Deep

New research has shown that Mars may have been covered in a worldwide ocean when Earth was still covered in…

2 years ago

Early Earth was Pummeled 10x More Than Previously Estimated

It’s no secret that Earth was bombarded with plenty of meteors for billions of years during the solar system’s early…

3 years ago

There Should be More Material Left Over From Bombardment Eras. Maybe the Sun Blew it all Away?

The early solar system was an especially violent place. The terrestrial planets (Mercury, Venus, Earth, and Mars) likely formed by…

3 years ago