After a 16 year wait, the star SO-2 will speed past our galaxy’s supermassive black hole at 2.5% the speed of light. It will be the first-of-its-kind test of Einstein’s […]
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It’s discovered thousands. But how many more are out there? “How vast those Orbs must be, and how inconsiderable this Earth, the Theatre upon which all our mighty Designs, all our […]
NASA discovers a surprisingly dark planet about 1,400 light years away.
The story of John Couch Adams, “the man who failed to discover Neptune,” and his cosmic redemption. Perhaps its human nature to want to only think positive thoughts about our […]
I’m not saying it wasn’t aliens… but… it wasn’t aliens. “Just the fact that you so desperately attempt to dismantle our theory proves that we are on the right track. Otherwise […]
Citizen scientists are advancing scientific knowledge.
If we know how big the observable Universe is, why can’t we figure out how big the unobservable part is? 13.8 billion years ago, the Big Bang occurred. The Universe was […]
Sabine Hossenfeder has some problems with how it’s practiced today.
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Black holes in these environments could combine repeatedly to form objects bigger than anything a single star could produce.
Dark energy is pushing distant galaxies apart from one another at an increasing rate. If the Big Rip hypothesis is true, things will only get worse from here. One of the […]
From the birth and deaths of stars to the largest structures in the Universe, Hubble shows us what we’d never see otherwise. When it comes to the Universe itself, perhaps […]
Studies using advanced space telescopes paint a fascinating picture of our early universe.
There’s so much that we’ve discovered, looking as deeply as possible into the void. But what are we missing? Start with the laws of physics, a Universe full of a specific […]
The most unusual star known has finally had its dimming scientifically explained. Here’s the unusual, dusty resolution. The science of planet-hunting has truly taken off in the 21st century, with […]
This polymath’s papers—full of personal and scientific revelations—have joined the World Register.
The Planetary Habitability Laboratory has made up some periodic tables of all of the confirmed and suspected exoplanets so far, plus planetary bodies in our own solar system.
Just because humans wouldn’t do well over there doesn’t mean there aren’t incredible chances for life. For nearly 30 years, scientists have been discovering planets beyond our Solar System: the exoplanets […]
It’s a great show in total darkness. Here’s how to not ruin it for yourself. “Yes, I am well aware that nature — or what we call nature: that totality of objects […]
Neil deGrasse Tyson, famous in part for using his scientific literacy to point out flaws in TV and movies, recently criticized the good and bad science behind HBO’s Game of Thrones.
Even with nothing new falling into it, our radius is increasing with every second that goes by. It’s no big secret that galaxies grow over time. The force of gravity is […]
If the gravity isn’t where the matter is, things get into trouble very, very quickly. The above image, a composite of optical data, X-ray data, and a reconstructed mass map, is […]
You can watch the Cosmos marathon right now, for free!
It isn’t the Big Bang or stars like the Sun that gave rise to us. The story is far more… explosive. At the smallest level, the human body is made […]
Just one equation relates the expansion of space to all the matter and energy we have. If you know this, you can know the fate of the Universe. Last week, […]
It isn’t just a theory; it’s the best way we have to make sense of everything that exists. “The physicist is like someone who’s watching people playing chess and, after watching […]
Humanity has mapped the Milky Way better than ever with ESA’s Gaia. But 1.7 billion stars later, there are still no Dyson spheres. Perhaps the greatest ‘holy grail’ in all of […]
The discovery of the first-ever asteroid to arrive from interstellar space is full of lessons for us all. On October 19th, astronomers discovered an objectunlike any other we’d seen before: a […]
If it can stretch the Universe from the size of a subatomic particle to billions of light years in a fraction of a second, why doesn’t Einstein’s relativity forbid it? When […]
How do you get so massive so fast? The answer could be a big problem for our standard picture of cosmology. Out in the extreme distances of the Universe, the […]
If December’s best natural sky show seems to get better every year, it isn’t your imagination. It’s science, and it’s spectacular! Every year, the Earth travels some 940 million kilometers […]