Search results for Terrestrial Planets

Space Exploration Jul 19, 2023

New study reveals NASA's Roman could find 400 Earth-mass rogue planets

New research by scientists from NASA and Japan's Osaka University suggests that rogue planets—worlds that drift through space untethered to a star—far outnumber planets that orbit stars. The results imply that NASA's Nancy ...

Planetary Sciences Jul 13, 2023

Revised cratering chronology moon model shows parts of crust are 200 million years older than thought

Scientists have "reset the clock" for craters on the moon, meaning that parts of its surface are around 200 million years older than had been thought.

Ecology Jul 13, 2023

Using AI to save species from extinction cascades

Algorithms can predict what movies or songs you might like, but they can also predict which species a predator would most likely eat.

Planetary Sciences Jul 10, 2023

Scientists use NASA MESSENGER mission data to measure chromium on Mercury

The origin of Mercury, the closest planet to the sun, is mysterious in many ways. It has a metallic core, like Earth, but its core makes up a much larger fraction of its volume—85% compared to 15% for Earth.

Condensed Matter Jul 10, 2023

Study reports melting curve of superionic ammonia under icy planetary interior conditions

Icy planets, such as Uranus (U) and Neptune (N), are found in both our solar system and other solar systems across the universe. Nonetheless, these planets, characterized by a thick atmosphere and a mantle made of volatile ...

Plants & Animals Jul 9, 2023

Why are there hopping mice in Australia but no kangaroos in Asia? It's a long story

The animals in Australia are super-different to those in Asia. This goes without saying; we know Australia is full of weird and wonderful creatures found nowhere else on Earth, such as the platypus and the koala.

Planetary Sciences Jul 5, 2023

Study shows the Earth formed from dry, rocky building blocks

Billions of years ago, in the giant disk of dust, gas, and rocky material that orbited our young sun, larger and larger bodies coalesced to eventually give rise to the planets, moons, and asteroids we see today.

Planetary Sciences Jun 26, 2023

Animation shows what the world would look like if you could see carbon dioxide emissions

It's a strange, eerie-looking place. Carbon dioxide gas appears… and disappears in cycles and bursts throughout the year. It's how our planet would look if we could detect carbon dioxide (CO2) with our eyes. Scientists at ...

Astrobiology Jun 21, 2023

Exoplanet may reveal secrets about the edge of habitability

How close can a rocky planet be to a star, and still sustain water and life?

Planetary Sciences Jun 15, 2023

The intriguing correlation between earthquakes and cosmic radiation

There is a clear statistical correlation between global seismic activity and changes in the intensity of cosmic radiation recorded at the surface of our planet, potentially helping to predict earthquakes. Surprisingly, it ...

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