The planet has had life on it, in some form or another, for nearly as long as Earth has existed. If you came to our Solar System right after it formed, […]
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And if the data is good enough, we can determine that it’s accelerating directly, too, silencing the last remaining doubters. If you want to understand what the Universe is made […]
The ices and rock aren’t green, and neither are the tails. So where does a comet’s green color come from? Every so often, with extreme regularity, comets will plunge from beyond […]
It’s a great ambition of science enthusiasts all over the globe. It’s also a terrible idea. If you want to take the most pristine, unpolluted images of the Universe, your best […]
In 2017, we saw gravitational waves a neutron star merger for the first and only time. And it keeps getting more interesting. On August 17, 2017, a cosmic signal arrived […]
If we ruin the night sky too severely, ground-based astronomy could suffer tremendously. Here’s why space is no replacement. There is an existential threat to astronomy as we know it, […]
Any hypothesis, no matter how alluring, must be confronted with the full suite of data. Our Solar System may be the closest part of the Universe to us as we look […]
In theory, we could use high-energy lasers to make our own artificial black holes, potentially capturing the enormous energy they emit.
“In so far as bodily movements build the brain, every movement a human makes matters.”
Well-lit cities and towns are essential to public safety. That doesn’t have to ruin the night sky. For most of us here on planet Earth, navigating the world at night is […]
A 1060-hour amateur exposure of a nearby galaxy does what even Hubble couldn’t do. The Universe is full of astronomical wonders, but it’s up to humanity to observe and analyze them. […]
For 100 million years, there was only creation in the Universe. Meet our first moments of destruction. The cosmic story that gave rise to us is a story rife with […]
The meaning—and range—of “habitable” goes much farther than we once thought.
We can’t help but wonder if it’s habitable, or even inhabited, but the evidence isn’t there for it. Every star that fills the night sky carries along with it one of […]
Vitamins do work — when eaten in whole foods, not pills.
At least he wasn’t burned at the stake, right?
There was a first molecule, and we found one just like it. But there’s a big difference. The Universe’s first molecule is found at last! That’s what the headlines have […]
The most massive star in the known Universe is 260 times as heavy as our Sun. But viewing the early Universe will shatter that record. Place enough mass together in one […]
Diabetics have to endure constant injections on a daily basis, but this new device could make staying alive easier.
Future or extraterrestrial civilizations could create megastructures the size of a solar system.
Also known as the “Halloween Comet,” a 2,000-foot-wide asteroid is expected to pass Earth on November 11.
In order to reap the greatest rewards, we have to think big and invest big. One of these four missions will deliver like never before. When it comes to exploring the […]
The next gold rush might take place in our sewers.
North Korea’s Great Leader would rather not fly for his second summit with Trump – but the trip is also a political message to China.
The first planets were only gas. The second included rocky ones, but life wasn’t possible. Here’s how we finally got there. Here in the Universe today, potentially habitable planets are practically […]
If this newfound galaxy is just the tip of the iceberg, the entire Universe may fall into place. One of the greatest challenges for a scientist is that every time you […]
This technology could close the gap between nature and the man-made environment.