Solar System | Universe Today

Solar System

Satellites Watched Mercury’s Transit From Space, Confirming That Yes, the Sun Has At Least One Planet

Do you wonder how astronomers find all those exoplanets orbiting stars in distant solar systems? Mostly they use the transit…

3 days ago

A NASA Panel Says We Don’t Need to be so Careful About Infecting Other Worlds

It's time to update the rules. That's the conclusion of a panel that examined NASA's rules for planetary protection. It…

3 weeks ago

Rosetta Saw Collapsing Cliffs and Other Changes on 67P During its Mission

It seems that comet 67P/Churyumov–Gerasimenko is not the stoic, unchanging Solar System traveller that it might seem to be. Scientists…

2 months ago

Enceladus Causes Snowfall On Other Moons of Saturn

Radar evidence shows that geysers on Enceladus are ejecting water that turns to snow. The snow not only falls back…

2 months ago

Metallic Asteroids Might Have Had Volcanoes Erupting Molten Iron. That’s So Metal

Remember the asteroid Psyche? It's the largest known asteroid in the asteroid belt between Mars and Jupiter. It's been in…

2 months ago

The Moon is Older Than Scientists Thought

The most comprehensive and widely-held theory of how the Moon formed is called the 'giant impact hypothesis.' That hypothesis shows…

4 months ago

Drama In Low-Earth Orbit As LightSail2 Deploys Its Sails

LightSail 2 has successfully deployed its solar sails. Shortly after 12:00 pm PST The Planetary Society tweeted that the sails…

4 months ago

The Collision that Created the Moon Might Have Also Brought Water to the Early Earth

Scientists at the University of Munster have discovered that Earth got its water from a collision with Theia. Theia was…

6 months ago

Some of Earth’s Gold Came From Two Neutron Stars That Collided Billions of Years Ago

A new study has shown that a good deal of Earth's heaviest elements may have come from a nearby neutron…

6 months ago

New Ring of Dust Discovered in the Inner Solar System

Discovering new things in space is a regular occurrence. Astronomers keep finding more distant objects in the outer reaches of…

8 months ago