Sublimation

In the 1980s, NASA engineers tried to launch a partially used space shuttle in a cost-cutting effort. The result was the Challenger disaster.

As the popularity of at-home freeze drying continues to grow, so do questions about its safety. Once primarily a commercial food preservation technique,

If you are looking for a printer that is quick, efficient and easy to use, these are some of the best options in the market.

From solar storms to "shooting stars" over Stonehenge, here are our top 10 favorite space photos of 2024 — and what they told us about our beautiful cosmos.

Curiosity has just finished the latest leg of its 12-year Mars mission and will now set out to explore miles of web-like surface features left behind by ancient water on the Red Planet. The zig-zagging rocks could also provide clues about whether Mars once harbored extraterrestrial life.

Webb detected jets of carbon monoxide and carbon dioxide gas on a distant icy centaur. This may shed light on the formation and evolution of the solar system. The post Centaur jets? Webb detects jets of gas on distant icy body first appeared on EarthSky.

Holcim AG and CRH PLC joined forces to invest in a new startup

SpaceX Polaris Dawn astronaut Jared Isaacman briefly "touched the void" as he embarked on the first-ever private spacewalk Thursday (Sept. 12).

Two new studies provide two new answers to the mystery of where Mars's water disappeared to.

The Moon is about one-fourth the size of Earth.

Researchers using NASA's Webb space telescope have found Uranus' moon Ariel may have a subsurface ocean, similar to Europa, Enceladus and others. The post Does Uranus' moon Ariel have a hidden ocean? first appeared on EarthSky.

'Dark comets,' which have no visible tail, could also explain the strange behavior of the interstellar object 'Oumuamua.

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A major field project high in Colorado's Rocky Mountains has enabled scientists to produce the most comprehensive examination to date of how snow sublimates in a mountain environment.

The aurora borealis is usually seen near the Arctic, but solar winds and magnetic turbulence are sparking some of the best light shows in centuries throughout the US.

The dwarf planet Ceres hosts permanently shadowed areas in its polar regions, and these regions are an interesting analog to Mercury and the Moon.

What *are* those things?

Could this mean that there's sign of life in Mars?

Water freely flowed across Mars billions of years ago, suggesting the Red Planet could also once have supported life. But this water may have existed for...

Astronomers have used the James Webb Space Telescope to detect complex molecules such as alcohol and an ingredient found in vinegar around two young stars.