No matter how your year went, Hubble’s views of the Universe never disappoint. Year after year, Hubble’s telescopic views are unparalleled. Saturn, its rings, and 5 of its moons are […]
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If dark matter exists in a large halo in our galaxy, made up of particles, then it’s passing through us constantly. But how much?
A new study proposes that Hawking radiation could be used to find dark matter in places like primordial black holes.
Dark energy is one of the biggest mysteries in all the Universe. Is there any way to avoid “having to live with it?”
13.8 billion years ago, the hot Big Bang gave rise to the Universe we know. Here’s why the reverse, a Big Crunch, isn’t how it will end.
Already 14 billion miles from the Sun, Voyager 1 is speeding away at 38,000 mph.
Even with leap years and long-term planning, our calendar won’t be good forever. Here’s why, and how to fix it.
Theoretically, we know what happened on the red planet. Here’s how we’ll find out whether we’re right. When it comes to the worlds beyond Earth in our Solar System, it’s only […]
As technology advances, the use of laser weapons in space becomes more likely.
The Crab Nebula goes back to 1054, opening a window into our cosmic past. On July 4, 1054, Chinese astronomers recorded a “guest star” in the Taurus constellation. A ‘guest star’ […]
It had long seemed impossible that supermassive black holes could grow to such enormous sizes. But the biggest problem is now solved.
The Taupo volcano was responsible for one of the most violent eruptions on record.
A new survey, the DESI Legacy Imaging Survey, has found more lenses than all others put together. One of Einstein’s most revolutionary predictions is that mass bends light. During a […]
The Kardashev scale ranks civilizations from Type 1 to Type 3 based on energy harvesting.
Only 17 years after its discovery have we learned we’re safe from asteroid Apophis. Ever since its 2004 discovery, asteroid 99942 Apophis has threatened planet Earth. Asteroid Apophis has been measured […]
Where did the “seed” magnetic field come from in the first place?
Determining if the universe is infinite pushes the limits of our knowledge.
From hellishly hot planets to water worlds, some distant planets are like nothing in our Solar System.
As early as we’ve been able to identify them, the youngest galaxies seem to have large supermassive black holes. Here’s how they were made.
If our Universe were born a little differently, there wouldn’t have been any planets, stars, galaxies, or chemically interesting reactions.
And after years of mystery, we finally know where they come from. Here on Earth, thunderstorms and accompanying lightning strikes represent tremendous releases of energy. It was way back in 2011 […]
The helicopter’s sixth mission almost went down in disaster.
It’s last “hard” test is over. Now, we wait for its launch. Despite numerous delays, funding crises, and technical challenges, NASA’s James Webb Space Telescope is almost ready. The science instruments […]
Forget about the terawatt lasers we’re making on Earth. This natural one is thousands of times more powerful than the Sun.
The successor to Hubble is almost ready for launch. It’s really coming this year, too! NASA’s James Webb Space Telescope, originally proposed in the 1990s, is finally slated to launch later […]
For the cosmos, it’s all too easy being green. Stars come in a wide variety of colors, but never green. Stars form in a wide variety of sizes, colors and masses, […]
At four million solar masses, the Milky Way’s supermassive black hole is quite small for a galaxy its size. Did we lose the original?
It peaks the nights of August 11–13, but it’s no longer the year’s most reliable meteor shower. Every year, beginning in mid-July, planet Earth commences passing through an enormous debris […]
Even after our merger with Andromeda, we might retain our spiral shape for trillions of years. You probably don’t think about it very often, but the Milky Way galaxy won’t remain […]
Much like computing technology, the Great Red Spot has been getting smaller and faster over the last few years.