There are a lot of unsolved mysteries in the Universe, but dark energy is the most confusing. Here’s why. The majority of the energy in our Universe went completely undiscovered until […]
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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 […]
Hubble holds the record, finding a galaxy when the Universe was just 3% it’s age. In just a few years, James Webb will shatter it. One of the great scientific lessons […]
You’d be amazed at what you can learn from even one single pixel. Over the past decade, owing largely to NASA’s Kepler mission, our knowledge of planets around star systems beyond […]
Depending on how you measure it, there are two different answers that could be right. If you want to see what’s out there in the Universe, you first have to be […]
With thousands of discovered planets around stars beyond our own Sun, why haven’t we found the next Earth? Over the past 30 years, astronomers have gone from zero known extra-solar planets […]
Two massive clouds of dust in orbit around the Earth have been discussed for years and finally proven to exist.
The Universe is an enormous place, but we can’t see all the way back to the beginning. Here’s the latest record-breaker. No matter how far back we look in the […]
From the inflationary state that preceded the Big Bang to our cold, lonely, dark energy-dominated fate, the Universe goes through six different eras. We’re living in the last one already. The […]
We know that life is possible on an Earth-like world around a Sun-like star. But can it find a way on a Super-Earth? When it comes to the origin of […]
What happened 4.56 billion years ago is the most important part of the cosmic story ever to happen to us. If you were to look at our Universe at the time […]
The picture itself is breathtaking. But what we learn is truly eye-opening. Galaxy clusters, like the massive one captured here by Hubble, PLCK G004.5–19.5, impress not just for their looks, […]
We’ve put so much together about the Universe. Could it all come tumbling down? We’re always on the lookout for the next big thing, and even our best guesswork is often […]
For hundreds of millions of years, most of the starlight never made it through space. Here’s how that changed. Forming stars sounds like the easiest thing in the Universe to do. […]
The cosmic records we have are meant to be broken, but oh, have we ever gone so far. The great cosmic abyss contains more that humanity can ever hope to see, […]
Theoretical work tells you where to look, but only experiments can reveal what you’ll find. There are fundamental mysteries out there about the nature of the Universe itself, and it’s our […]
The Big Bang happened everywhere at once, but stars are a different story. The Universe, back at its inception, was almost perfectly identical everywhere. It was the same high temperature […]
The current record-holder is a doozy, and right at the limit of what Hubble can do. But there’s even more out there. The greatest advances in science often come when we […]
It took more than 9 billion years for Earth to form: the only known planet housing life. But it could have happened much, much sooner. The cosmic story that unfolded following […]
If we don’t invest in learning about the Universe, we aren’t going to learn very much. Every ten years, the field of astronomy and astrophysics undergoes a Decadal Survey. This charts […]
Even before we have the James Webb Space Telescope, a controversy over when the first stars formed is growing. As far back as our most powerful telescopes have ever looked, we’ve […]
Hubble telescope celebrates 28 years of being a space sleuth with these dazzling images of the Lagoon Nebula, 4,000 light-years away.
These maps offer a glimpse of what’s been lost – or rather, destroyed – by previous generations.
What is the American Dream? The ever-changing definition of it might surprise you nearly as much as what it used to mean.
Richard Feynman wrote a lot of things. Here, you can read his most touching letter.
The solar neighborhood is so different than people imagine. But for the first time, we know what it’s like. When you look up at the stars in the night sky, they […]
For more than 10 billion years, the star-formation rate across the Universe has been plummeting. Here’s the story. Take a look at a wide variety of galaxies in the Universe, and […]
When you look at the history of it, a strange pattern emerges.
The indirectly find was completely unexpected, and, if it holds up, could give the James Webb Space Telescope its first tantalizing target. In the quest to understand our Universe, and […]