As the largest planet in the solar system, Jupiter has the strongest influence after the Sun, but even smaller planets like Saturn, Mars, or Earth can produce small but noticeable changes in comet orbits, especially for comets that pass close to these worlds.

Morgan Nunn Martinez studied lunar rocks from the 1969 Apollo 9 mission to learn about the origin of moon water. They found water in them by heating these rocks to 50, 150, and 1,000 degrees Celsius (122, 302, and 1,832 degrees Fahrenheit, respectively). The team analyzed the water’s oxygen isotopes to determine its origin.

Astronomer Dean Regas gives us the lowdown on the best things to look out for this winter, from a “planet parade” to the ATLAS comet.

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the weekend.

NASA shares images of comet C/2024 G3 (ATLAS) near the sun and stunning photos from Jupiter and Mars missions.

Mars in 2024 was the site of the sad end of a machine that lived far beyond expectations. On January 18, NASA's Ingenuity Mars helicopter flew for the last time. Given that on landing its rotors broke off, that's a pretty definitive conclusion.

Venus, Saturn, Jupiter and Mars will appear to line up and be bright enough to see with the naked eye in the first few hours after dark. This weekend, Venus and Saturn get especially cozy.

The world saw Donald Trump take the oath of office for his second non-consecutive term as President of the United States on Monday. The ceremony, held in the Rotunda of the U.S. Capitol, drew an eclectic crowd of tech moguls, foreign diplomats, and business leaders.

Former Purdue professor Jay Melosh has had his legacy honored in the form of a crater being named after him on the surface of Mars.

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The search for water on the Moon has captivated scientists for decades. Beyond its implications for understanding planetary science, lunar water could play a pivotal role in humanity’s ambitions to establish off-world colonies.

CAPE CANAVERAL, Fla. (AP) — Asteroid samples fetched by NASA hold not only the pristine building blocks for life but also the salty remains of an ancient water world, scientists reported Wednesday.