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Surface of Mars showing what look like watery streaks

Space

Mysterious water-like streaks on Mars might be sand flows instead

We thought the dark lines that appear on Martian slopes each summer were flowing salt water, but tumbling dust might be to blame

News

NASA's new budget is big on other worlds but ignores our own

Space

NASA's new budget is big on other worlds but ignores our own

News

Artist's impression of a grandly ringed future Mars

Space

Mars might already be building rings from its moons

News

frozen Mars

Space

The Mars paradox: Why we still don't understand water on Mars

Analysis

Mars landing sites for 2020 NASA mission down to the final three

Space

Mars landing sites for 2020 NASA mission down to the final three

News

Oxygen ions sent from Earth have been spotted on the moon

Space

Oxygen ions sent from Earth have been spotted on the moon

News

biofilms

Life

Dried-up slime could help microbes survive briny waters on Mars

News

Dried-up slime could help microbes survive briny waters on Mars

Space

Dried-up slime could help microbes survive briny waters on Mars

News

This smooth rock may be a metal meteorite on Mars

Space

Curiosity finds Mars rock that may be a meteorite made from iron

News

Tyson

Earth

Of presidents and planets: Neil deGrasse Tyson looks ahead

Donald Trump’s election alarmed many scientists. Neil deGrasse Tyson takes a cosmic perspective, reflects on Obama’s legacy and considers the road to Mars

Features

Space

Four extreme environments where humans are tasting life on Mars

Features

Space

Mars should have loads more water – so where has it all gone?

News

Life

My year on Mars: Frontier life of a space doctor

Features

Space

A dash of hydrogen and methane could have kept Mars warm

News