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asteroidsasteroids
+2+2
A brown dwarf reveals its mass
Aug 19, 2025
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A brown dwarf reveals its mass

Plus: Are Fast Radio Bursts caused by asteroids slamming into neutron stars?

Philip Plait
Philip Plait
supernovaesupernovae
+3+3
A star may have exploded when it ate a black hole
Aug 14, 2025
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A star may have exploded when it ate a black hole

Everything about this story is awesome and terrifying

Philip Plait
Philip Plait
exoplanetsexoplanets
+3+3
A planet for Alpha Centauri A?
Aug 07, 2025

A planet for Alpha Centauri A?

JWST spots what might be a Jupiter-sized world around the nearest Sun-like star

Philip Plait
Philip Plait
exoplanetsexoplanets
+7+7
White Dwarf stars are dead, but they still feed... on planets
Jul 31, 2025
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White Dwarf stars are dead, but they still feed... on planets

Observations show a lot of these stars are actually zombies. Also: moving an Earth-threatening asteroid just got a bit harder

Philip Plait
Philip Plait
supernovaesupernovae
+3+3
A second star for Betelgeuse?!
Jul 28, 2025

A second star for Betelgeuse?!

Astronomers post a possible binary companion for the soon-to-be supernova

Philip Plait
Philip Plait
NASANASA
+4+4
NASA declaration against Trump’s science attacks, more dusty WR star spirals
Jul 22, 2025

NASA declaration against Trump’s science attacks, more dusty WR star spirals

The Voyager Declaration takes a stand against budget cuts, and a gorgeous JWST image of Wolf-Rayet star dust expulsion

Philip Plait
Philip Plait
cosmologycosmology
+5+5
The Owl Galaxies are hiding a secret in plain sight. But what is it?
Jul 21, 2025

The Owl Galaxies are hiding a secret in plain sight. But what is it?

It might be a supermassive black hole, or it might be a bazillion newborn stars

Philip Plait
Philip Plait
supernovaesupernovae
+2+2
A colossal explosion sent antimatter heading toward us at nearly the speed of light
Jul 10, 2025
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A colossal explosion sent antimatter heading toward us at nearly the speed of light

That’s a fun headline to write! The good news is we’re safe and the science is awesome.

Philip Plait
Philip Plait
cometscomets
+5+5
An update on our 3rd alien visitor, and a new banner for BAN
Jul 07, 2025

An update on our 3rd alien visitor, and a new banner for BAN

More info on the interstellar comet 3I/ATLAS, and the Trifid is the new newsletter banner

Philip Plait
Philip Plait
dustdust
+6+6
Rubin opens its eye. And what it sees is the Universe.
Jun 24, 2025

Rubin opens its eye. And what it sees is the Universe.

Mind-blowing first images from the huge telescope.

Philip Plait
Philip Plait
supernovaesupernovae
+4+4
When did the Universe first get wet?
Jun 17, 2025

When did the Universe first get wet?

Water is simple, but it took time for the cosmos to brew the ingredients.

Philip Plait
Philip Plait
PoliticsPolitics
+4+4
No Kings protest thoughts; the spectacular Sombrero Galaxy fools me again
Jun 16, 2025

No Kings protest thoughts; the spectacular Sombrero Galaxy fools me again

No Kings rally more than just a protest; a gorgeous galaxy looks a lot better than I first thought

Philip Plait
Philip Plait
Everything, the Universe, and Life

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