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Scientists map of old Mars river basins for the 1st time. These could be great places to search for ancient life
By Sharmila Kuthunur published
"We did the simplest thing that could be done — we just mapped them and pieced them together."

Interstellar comet 3I/ATLAS caught on camera in new images from Hubble Space Telescope and JUICE Jupiter probe
By Sharmila Kuthunur published
JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

Perihelion: What is it and when does it occur?
By Tereza Pultarova last updated
Reference Perihelion is the point at which an orbiting body is closest to the sun. The word comes from Greek and literally means around (peri) the sun (helios).

What is the moon phase today? Lunar phases 2025
By Tariq Malik, Daisy Dobrijevic last updated
Reference See what moon phase it is tonight and find out when you can see the rest of the moon phases for 2025.

Uranus may have more in common with Earth than we thought, 40-year-old Voyager 2 probe data shows
By Keith Cooper published
The findings provide an answer to a planetary mystery that has bewildered scientists for nearly four decades.

Hear dust devils on Mars crackle with electricity in new NASA Perseverance rover video
By Samantha Mathewson published
For the first time, we can see and hear lightning-like discharges in Mars' thin atmosphere.

1st human missions to Mars should hunt for signs of life, report says
By Mike Wall published
Humanity's exploration of Mars should be organized around the search for signs of past or present Red Planet life, according to a new report from the U.S. National Academies.

Uranus's small moons are dark, red, and water-poor
By Kimberly M. S. Cartier published
…Except for Mab, which is even weirder than expected.

Sun unleashes intense X-class solar flare, triggering radio blackouts across Australia
By Daisy Dobrijevic published
The powerful X1.1 solar flare from sunspot region 4298 sparked strong radio blackouts on the sunlit portion of Earth at the time of eruption.

NASA spacecraft tracks comet SWAN in incredible 40-day timelapse — and even glimpses interstellar invader 3I/ATLAS (video)
By Sharmila Kuthunur published
NASA imaged Comet C/2025 R2 (SWAN) every four minutes for nearly 40 days, marking the longest any comet has been tracked with such frequency.
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