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Astrobiology Mar 12, 2024

NASA's search for life on Mars: A rocky road for rovers, a long slog for scientists, and a battle of the budget

Is or was there life on Mars? That profound question is so complex that it will not be fully answered by the two NASA rovers now exploring it.

Planetary Sciences Mar 12, 2024

Scientists propose new theory that explains sand ripples on Mars and on Earth

Sand ripples are fascinating. They are symmetrical, yet wind, which causes them, is very much not. Furthermore, they can be found on Mars and on Earth. It would be even more fascinating if the same effect found on Mars could ...

Archaeology Mar 12, 2024

Archeoastronomy uses the rare times and places of previous total solar eclipses to help us measure history

In 648 BCE, the Greek poet Archilochus wrote that "nothing can be surprising any more or impossible or miraculous, now that Zeus, father of the Olympians has made night out of noonday, hiding the light of the gleaming sun."

Earth Sciences Mar 12, 2024

Mars attracts: How Earth's interactions with the red planet drive deep-sea circulation

Scientists from the Universities of Sydney and Sorbonne University have used the geological record of the deep sea to discover a connection between the orbits of Earth and Mars, past global warming patterns and the speeding ...

Space Exploration Mar 11, 2024

SpaceX knocks out Canaveral launch during busy week with Crew-7 return, possible Starship launch

SpaceX sent up another batch of Starlink satellites on Sunday night from the Space Coast while prepping for the return of Crew-7 from the International Space Station and the potential third test flight of the Starship and ...

Planetary Sciences Mar 11, 2024

This hot Jupiter is doomed to crash into its star in just three million years

In 2008, astronomers with the SuperWASP survey spotted WASP-12b as it transited in front of its star. At the time, it was part of a new class of exoplanets ("hot Jupiters") discovered a little more than a decade before. However, ...

Planetary Sciences Mar 11, 2024

Image: Barchan and linear dunes on Mars

On Jan. 16, 2020, the Mars Reconnaissance Orbiter (MRO) captured this image of two types of sand dunes on Mars: barchan and linear dunes.

Plants & Animals Mar 11, 2024

Restored coral reefs can grow as fast as healthy reefs after just four years, researchers find

The coral reefs of south Sulawesi are some of the most diverse, colorful and vibrant in the world. At least, they used to be, until they were decimated by dynamite fishing in the 1990s.

Planetary Sciences Mar 9, 2024

Jupiter's moon Europa produces less oxygen than we thought—it may affect our chances of finding life there

Jupiter's icy moon Europa has long been thought of as one of the most habitable worlds in the Solar System. Now the Juno mission to Jupiter has directly sampled its atmosphere in detail for the first time. The results, published ...

Space Exploration Mar 8, 2024

Drones could help map the lunar surface with extreme precision

Exploring the moon has become increasingly more of a focal point lately, especially with a series of landers recently launched with various degrees of success. One of the difficulties those landers and any future human missions ...

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