Measurements of the acceleration of the universe don’t agree, stumping physicists working to understand the cosmic past and future. A new proposal seeks to better align these estimates — and is likely testable.
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The laws of physics state that you can’t create or destroy matter without also creating or destroying an equal amount of antimatter. So how are we here?
The view is different for each of us, but this perspective unites us all. From anywhere on Earth, the entire sky rotates a full 360° every 24 hours. From Earth, star […]
Google’s Arts & Culture app just added a suite of prehistoric animals and NASA artifacts that are viewable for free with a smartphone.
And what might we learn as we collect new, never-before-seen data? If you took one of history’s top scientists from 100 years ago and dropped them into today’s world, what […]
Is it groupthink? Or is there a deeper reason? In the early half of the 20th century, even after the discovery of the expanding Universe, physicists considered a wide variety of […]
Scientists find an exoplanet whose strange behavior may lead to the Solar’s System hidden ninth planet.
Philosopher Lee McIntyre discusses the dangers of disinformation, how such falsehoods spread, and what we can do about it.
If you think life on Earth is hard, wait until you see Mars. If you think life on Earth is hard, try living on Mars. Mars, as photographed from the surface […]
At its biggest for the next 15 years, it’s still much smaller than the Moon. On October 6, 2020, Mars makes its closest approach to Earth until 2035. Earth orbits in […]
If a large asteroid strikes Earth, it has the potential to release an enormous amount of energy, leading to local or even global catastrophes. The strike that led to the […]
One galaxy may have eaten one of its slightly smaller, more primitive neighbors.
Scientists at Washington University are patenting a new electrolyzer designed for frigid Martian water.
On other planets, blue skies and red sunsets aren’t the norm.
Scientists have detected within the Venusian atmosphere a chemical known to be a byproduct of life.
Scalars, vectors, and tensors come up all the time in science. But what are they? One of the major goals of science is to describe our reality as accurately as possible. […]
If everything eventually dies and decays, is there a way to prolong the inevitable? Our Universe, as it exists today, puts us in an incredibly privileged position. Had we come […]
The Universe is dark, but the distorted light reveals its presence. When we look at the objects in the Universe, the mass just doesn’t add up. A galaxy that was […]
There’s more light than we can account for, and we’ve just measured it robustly for the first time. When we look out at the darkest night skies available on Earth, even […]
It might not feel that way, but a 95% dark Universe really is the best game in town. No matter how much we might try and hide it, there’s an enormous […]
A new artificial intelligence method removes the effect of gravity on cosmic images, showing the real shapes of distant galaxies.
How can we understand mysterious planets like Jupiter? Use giant lasers!
The future of cities on the Moon, Mars and orbital habitats.
The rings are raining down onto the planet, and disappearing surprisingly fast. 4.5 billion years ago, our Solar System first formed. Protoplanetary disks, which all solar systems are thought to […]
Thou shalt not conclude “aliens” from insufficient data. When it comes to what’s out there in this Universe, perhaps the only thing that’s greater than our cosmic ignorance is the […]
Catch Saturn at its biggest and brightest, and view its rings while you still can. Right now, in Earth’s skies, Saturn appears at its biggest and brightest. A view of tonight’s […]
Watch as the small mirror joins millions of other pieces of space junk currently orbiting the planet.
Debris from Pluto-sized collisions, not aliens, are streaming through the galaxy. In 2017, scientists discovered an object passing through our Solar System that was unlike anything else we had ever seen. […]
A new study proposes mysterious axions may be found in X-rays coming from a cluster of neutron stars.
The Earth Return Orbiter is part of a long-term mission to search for ancient alien life on Mars.