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miscellanymiscellany
+4+4
How incomplete are we?
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How incomplete are we?

Completeness is an important concept for surveys in astronomy

Philip Plait
Philip Plait
Hubble Space TelescopeHubble Space Telescope
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Hubble (accidentally!) catches a comet tearing itself apart

Hubble (accidentally!) catches a comet tearing itself apart

Images show it fragmenting into several smaller pieces. Plus: I’m on EnterpriseSplaining.

Philip Plait
Philip Plait
Hubble Space TelescopeHubble Space Telescope
+4+4
Space debris is hurting us in another way: making the sky brighter
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Space debris is hurting us in another way: making the sky brighter

Also, the blue stragglers mystery may finally be solved

Philip Plait
Philip Plait
supernovaesupernovae
+4+4
A red supergiant that isn’t yellow
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A red supergiant that isn’t yellow

WOH G64 has apparently kept its hue. Also, the sun does seem to be able to fry asteroids that venture too close

Philip Plait
Philip Plait
miscellanymiscellany
+2+2
Does scifi exist in a scifi universe?

Does scifi exist in a scifi universe?

A fun rabbit hole pondering of a metatopic

Philip Plait
Philip Plait
Hubble Space TelescopeHubble Space Telescope
+6+6
Another gorgeous Hubble galaxy, but it has many secrets
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Another gorgeous Hubble galaxy, but it has many secrets

NGC 7722 is a weird hybrid of galaxy types. What does that tell us?

Philip Plait
Philip Plait
asteroidsasteroids
+2+2
Way too much DART news

Way too much DART news

The NASA spacecraft hit the moon Dimorphos, but that yanked the whole system hard enough to measure. Also, the plume was modeled in 3D, and the bigger asteroid is spitting rocks at its moon. So yeah, a lot.

Philip Plait
Philip Plait
supernovaesupernovae
+5+5
Looks like the asteroid 2024 YR4 won’t impact the moon, plus Rubin Observatory sends out its first cosmic alerts... 800,000 of them!

Looks like the asteroid 2024 YR4 won’t impact the moon, plus Rubin Observatory sends out its first cosmic alerts... 800,000 of them!

Supernovae, asteroids, and more: That’s a lot of alerts.

Philip Plait
Philip Plait
asteroidsasteroids
+5+5
Standing up for Science rally, Physics Girl is back, and we need to find more asteroids

Standing up for Science rally, Physics Girl is back, and we need to find more asteroids

I’m angry about anti-science attacks, Dianna Cowern has made a new video, and a graph shows why we need to look for near-Earth asteroids

Philip Plait
Philip Plait
MarsMars
+3+3
More Martian lightning, China peaks its emission, and satellite re-entries shake the ground
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More Martian lightning, China peaks its emission, and satellite re-entries shake the ground

Three very cool science stories about Mars, Earth, and near-Earth space

Philip Plait
Philip Plait
miscellanymiscellany
+7+7
Our Milky Way’s supermassive black hole has a hiccuppy past

Our Milky Way’s supermassive black hole has a hiccuppy past

It may erupt every few centuries, but don’t panic!

Philip Plait
Philip Plait
supernovaesupernovae
+7+7
Watch a supernova explosion sweep through space
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Watch a supernova explosion sweep through space

Animation shows X-rays from an exploded star as it expands over the decades

Philip Plait
Philip Plait
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