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Does the climax of the movie ‘Gravity’ violate simple physics?
Does the climax of the movie ‘Gravity’ violate simple physics?
Should George Clooney’s character have floated away? Or do the laws of physics tell a different story?
Ethan Siegel
yesterday
How fast does the Earth move through the Universe?
How fast does the Earth move through the Universe?
And if relativity tells us there’s no such thing as “absolute motion,” how do we measure it?
Ethan Siegel
2 days ago
A nearby, infant star teaches us how planets began to form
A nearby, infant star teaches us how planets began to form
A stunning new image of ALMA’s protoplanetary disk sheds light on planetary formation.
Ethan Siegel
3 days ago
The Milky Way’s Most Recent Supernova Was Hidden… Until Now!
The Milky Way’s Most Recent Supernova Was Hidden… Until Now!
1604 is the last time a human saw one with their naked eyes, but that wasn’t the most recent one at all.
Ethan Siegel
4 days ago
What your birthstone means, according to science
What your birthstone means, according to science
Geology rocks!
Ethan Siegel
5 days ago
Featured
Mostly Mute Monday: A GLIMPSE of the Galaxy
Mostly Mute Monday: A GLIMPSE of the Galaxy
The Spitzer Space Telescope has imaged our entire galactic plane in the infrared, and it’s a 180,000 pixel spectacular.
Ethan Siegel
Mar 2, 2015
Astroquizzical: What happens when Betelgeuse explodes?
Astroquizzical: What happens when Betelgeuse explodes?
It’s one of the nearest red supergiants to us, and a supernova is only a matter of time. What are we in for when it happens?
Jillian Scudder
Feb 24, 2015
The strangest moon in the Solar System
The strangest moon in the Solar System
Saturn’s Iapetus looks like nothing else we’ve ever seen. What made it so?
Ethan Siegel
Feb 4, 2015
The status of the Universe: 2015
The status of the Universe: 2015
With the full suite of observations of the Universe now at our disposal, what is the story, contents, and history of the Universe?
Ethan Siegel
Jan 7, 2015
Ask Ethan #69: Is our Universe escaping us?
Ask Ethan #69: Is our Universe escaping us?
As dark energy takes over and distant galaxies accelerate, what are we losing, and what does that mean?
Ethan Siegel
Jan 2, 2015
Does the Scientific Method need Revision?
Does the Scientific Method need Revision?
Does the prevalence of untestable theories in cosmology and quantum gravity require us to change what we mean by a scientific theory?
Sabine Hossenfelder
Dec 17, 2014
Trending
Pluto’s Color Variations Finally Make Sense
Pluto’s Color Variations Finally Make Sense
Why are some areas redder than others? It’s what happens to methane ice in the Sun.
Ethan Siegel
Mar 14
10 Quantum Truths About Our Universe
10 Quantum Truths About Our Universe
Even most of the pros don’t know all 10.
Ethan Siegel
Mar 22
No, Science is not Faith-Based
No, Science is not Faith-Based
No matter what the editorials in the Wall Street Journal say.
Ethan Siegel
Mar 15
Could dark matter not exist at all?
Could dark matter not exist at all?
It’s said to be the majority of matter in the Universe, but how sure are we of that?
Ethan Siegel
Mar 31
Most planets in the Universe are homeless
Most planets in the Universe are homeless
Some were kicked out of their Solar Systems at the beginning, while others never had a parent star at all.
Ethan Siegel
Mar 25
Could the Large Hadron Collider make an Earth-killing black hole?
Could the Large Hadron Collider make an Earth-killing black hole?
No. Not even if you violate the laws of physics in two fundamental ways.
Ethan Siegel
Mar 18
Most Massive Collection Of Giant Stars Ever Revealed By Hubble
Most Massive Collection Of Giant Stars Ever Revealed By Hubble
Including the most massive star ever discovered in the Universe.
Ethan Siegel
Mar 28
Latest
Beyond Human Vision
Beyond Human Vision
How colliding galaxy clusters emit the most spectacular fireworks, if only you look beyond what your eyes can see!
Ethan Siegel
Apr 4
New Starts With A Bang Podcast Is Live!
Thanks to the generous contributions of our Patreon supporters (which includes many of you), Starts With A Bang has now been creating free…
Ethan Siegel
Apr 3
New Starts With A Bang Podcast Is Live!
Thanks to the generous contributions of our Patreon supporters (which includes many of you), Starts With A Bang has now been creating free…
Ethan Siegel
Apr 3
Ask Ethan: How Do Black Hole Jets Carve Out Bubbles In Space?
Ask Ethan: How Do Black Hole Jets Carve Out Bubbles In Space?
If they shoot out straight lines of high-energy particles, why do they carve bubble-like shapes?
Ethan Siegel
Apr 2
Why do the tiniest galaxies have the most dark matter?
Why do the tiniest galaxies have the most dark matter?
Everything else has a 5:1 dark matter-to-normal matter ratio. But get a smaller and smaller galaxy, and dark matter skyrockets!
Ethan Siegel
Apr 1
NASA’s Dawn probe solves Ceres’ multiple mysteries
NASA’s Dawn probe solves Ceres’ multiple mysteries
Those white spots are still salt, but there’s so much more there!
Ethan Siegel
Mar 30
What it means if CERN discovers a new particle
What it means if CERN discovers a new particle
There’s been a small but significant excess observed, and a new particle is one possible explanation. What will it mean?
Ethan Siegel
Mar 29
Ask Ethan: Could Dark Energy Recycle The Universe?
Ask Ethan: Could Dark Energy Recycle The Universe?
Our Universe is becoming colder, sparser and emptier. But is that its inevitable, ultimate fate?
Ethan Siegel
Mar 26
The next great global warming ‘hiatus’ is coming!
The next great global warming ‘hiatus’ is coming!
It won’t mean that global warming has stopped, but that won’t stop the usual suspects from making their anti-science claims.
Ethan Siegel
Mar 23
Mostly Mute Monday: New map of the Milky Way now complete!
Mostly Mute Monday: New map of the Milky Way now complete!
And it reveals the future of our galaxy’s unborn stars.
Ethan Siegel
Mar 21
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