Today in science: Luna 1, 1st spacecraft headed to moon

Some historians believe the Soviet spacecraft Luna 1 was supposed to hit the moon. It didn't. However, it was the first earthly craft to sweep past the moon.

Mystery in the Orion Nebula: Pairs of rogue planets?

The James Webb Space Telescope has discovered something unexpected in the Orion Nebula: pairs of unusual planet-like 'binary objects' drifting freely in space.

How many recipes for life in the universe?

Researchers in Wisconsin are searching for and testing new chemical recipes for the origin of life. Such recipes for life may be common in the universe.

Chart showing Mars oppositions from 2018 to 2033

Here's why Mars oppositions are sometimes awesome. 2022 is a good year for Mars, but 2020 was even better. The next great Mars opposition is in 2033.

Perseverance rover reveals history of ancient habitable lake

NASA's Perseverance rover has collected 23 samples of rock so far in Jezero Crater on Mars. Analysis shows the ancient lake in the crater was quite habitable.

See the top 10 stories of 2023 from EarthSky

The top 10 stories of 2023 is a review of what we’ve learned in the past year from our home planet, Earth, and about our vast universe.

The day the solar wind disappeared at Mars

In December 2023, at the American Geophysical Union meeting in San Francisco, scientists discussed a rare "disappearance" of the solar wind at the planet Mars.

Tiny brown dwarf is smallest found so far

NASA's Webb space telescope has found a tiny brown dwarf that is the smallest free-floating brown dwarf ever seen. Scientists aren't quite sure how it formed.

The strange case of 2 missing giant exomoons (and maybe others)

Astronomers in Germany say that 2 possible giant exomoons probably don't actually exist. That's disappointing, but there are still some other candidates.

Watery plumes on Enceladus could hold signs of life

Do the plumes on Enceladus contain evidence of life from the moon's ocean? A new study shows that amino acids could survive and be detectable by spacecraft.