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Science & Tech
Explore the discoveries that reveal how the world works, alongside the technologies that extend, reshape, and sometimes challenge what’s possible.
For decades, one of the Big Bang’s greatest predictions was shrouded in doubt. The answer was always there on Channel 3. When it comes to the question of how our Universe […]
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 […]
On May 9, 2016, the prior transit of Mercury occurred, and was photographed many times on a practically continuous basis by NASA’s Solar Dynamics Observatory. Transits of Mercury are rare, […]
When you hear ‘quantum,’ you probably think of splitting everything into discrete, indivisible chunks. That’s not necessarily right. If you want to learn what the Universe is made out of […]
A theoretical view of a distant world so far from our Sun that our Solar System appears barely brighter than the remaining stars in the sky. ( Caltech/R. Hurt (IPAC)) Pluto […]
It might seem puzzling, in a Universe bound by the speed of light, that this could be true. Here’s the science behind it. If you look out into the distant Universe, […]
Scientists actively researching this have known the answer for quite some time. It’s time for everyone to catch up. The Big Bang happened 13.8 billion years ago, and is generally regarded […]
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 […]
Young galaxies are bright and blue; old galaxies are red and dead. So how did this old, red galaxy form so early? The observable Universe contains two trillion distinct galaxies, but […]
Forget about alien nonsense. The Universe as it actually is doesn’t need any embellishments to be interesting. In our Solar System, the planets, moons, asteroids, comets and other masses are […]
If you think about the way a gravitational wave detector works, you might encounter a paradox. Here’s the solution. One of the greatest scientific achievements in all of human history […]
100+ years ago, General Relativity came along, and Einstein gave the Universe a cosmological constant. Here’s why that was a mistake. Back in the 17th century, Isaac Newton put forth the […]
It’s been spectacularly confirmed by observation, but theoretically, it couldn’t have been any other way. If the Sun were to spontaneously cease emitting light, we wouldn’t know about it for about […]
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 […]
The origin story for our Universe got a major revision nearly 40 years ago. Time to catch up. 13.8 billion years ago, all the matter and energy contained within our Universe […]
It’s one of cosmology’s biggest unsolved mysteries. The strongest argument against it may have just evaporated. The ultimate goal of cosmology contains the greatest ambition of any scientific field: to […]
Traveling interstellar distances in human lifetimes is an amazing dream, but it won’t ever be achieved like this. For centuries, ever since we realized that every star we can see in […]
Simply getting into grad school isn’t enough. The answers to these three questions can make all the difference. It’s time. You’ve done all your research into schools, completed your undergraduate […]
In the mid-20th century, ‘physical cosmology’ was considered an oxymoronic joke. Today, it’s Nobel-winning science. Imagine you wanted to know everything you could about the Universe. You’d want to find […]
If you think that the Moon is only good for reflecting sunlight, you’ve got another think coming. To human eyes, the Moon is the second brightest visible object, trailing only the […]