Space
This dead star is still shredding its planetary system
Astronomers have discovered a dead star is still shredding the remains of its ancient planetary system. The metallic debris is spiraling onto the white dwarf.
Space
Ancient water in protoplanetary disk is older than its star
Astronomers found ancient water in the planet-forming disk of a young star. This heavy water formed in molecular clouds before the star was born.
Earth
Sun

Sun news: Yesterday’s huge blast of sun-stuff to hit Venus

Sun news for October 23, 2025: The huge blob of solar material was saw launch from the sun's far side on Tuesday is set to hit Venus today.
Constellations

Auriga the Charioteer and bright Capella on October evenings

Auriga the Charioteer is a north circumpolar constellation best viewed on autumn and winter evenings. Its star Capella is the 6th brightest star in the sky.
Astronomy Essentials
Tonight

Visible planets and night sky guide for October

Visible planets and night sky guide. There are 3 comets in the sky now that you might be able to see! Watch this video to learn how.
Human World

Covid vaccine could help cancer patients fight tumors

A new study has found that the Covid vaccine stimulated the immune system of cancer patients to attack tumors. Read more about this encouraging research.
Space

New study says microbes on Mars might be living in the ice

If there are any living microbes on Mars, or even dead ones, the best place to search for them is in ice deposits, a new study from Penn State and Goddard said.
Space

What etched these strange gullies on Mars into the sand?

Researchers investigated unusual gullies on Mars that are deeply etched into sand dunes. Blocks of sublimating CO2 ice could create the unearthly features.
Astronomy Essentials

Proxima Centauri, the closest star to our sun

Proxima Centauri is the nearest star to our sun at 4.22 light-years away. It's home to at least 3 planets and has massive solar flares.
Space

New comet C/2025 R2 (SWAN) is up after sunset, too

New comet C/2025 R2 (SWAN) is still shining at 6th magnitude, meaning it's within the limit for viewing with the unaided eye. But binoculars will show it better!

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