What we can see extends for 46.1 billion light years in all directions today. So how big was it at birth? “They say it all started out with a big bang. […]
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Thanks, climate change.
How does he deliver presents to hundreds of millions of households in just one night? With physics, of course! “Our family was too strange and weird for even Santa Claus to […]
Now that it’s seen gravitational waves, could physics beyond Einstein be its next target? This post is written by Sabine Hossenfelder, a theoretical physicist specialized in quantum gravity & high energy […]
Four years ago, the world was shaken with the announcement of a planet around Alpha Centauri. But was it real? “You’re on Earth. There’s no cure for that.” –Samuel Beckett If […]
Our Sun gets its energy from fusion in its core. But can any light be made from the surface? “Birds sing after a storm; why shouldn’t people feel as free […]
NASA’s New Horizons probe is on a road trip to Pluto and sending back some illuminating imagery on the way.
By Ethan SiegelImages: NASA, Francis Godwin, OSA As part of the Space Glass project — Ethan Seigel, astrophysicist, science communicator & NASA columnist explains how technology, imagination and our desires come together […]
Planets, Stars, Galaxies, Groups and Clusters are all real. But Superclusters? They’re nothing more than optical illusions. “It is far harder to kill a phantom than a reality.” –Virginia Woolf […]
And what it means if we don’t see gravitational waves from inflation in the next 5–10 years. “The paradigm of physics — with its interplay of data, theory and prediction — is the most powerful […]
When everything passes away, what will be left? “End? No, the journey doesn’t end here. Death is just another path, one that we all must take. The grey rain-curtain of […]
There are many different levels, but one key difference separates science from the rest. “I cannot help fearing that men may reach a point where they look on every new theory […]
Discovering the face of Earth’s sister planet, Venus, beneath its cloudy veil. “Now, Venus is an extremely hostile environment, and as such presents a lot of challenges for a science […]
It’s not that Astronomy has a “problem” that’s unique; it’s that they’re actually doing something about it. “Beauty provokes harassment, the law says, but it looks through men’s eyes when deciding […]
Will we stick around for eternity? Or someday decay away? “I trust in nature for the stable laws of beauty and utility. Spring shall plant and autumn garner to the end […]
Is inertia of prior ideas the only thing keeping us from the next major revolution in science? This post was written by Brian Koberlein. Brian is an astrophysicist and Senior Lecturer […]
The space agency seeks to index the parts of the Internet Google won’t show you.
Why look for rare, precious metals on Earth when you can find them here? “Well, this is a thing unheard of. An Elf would go underground, where a Dwarf dare […]
Four billion years ago, the Universe was a different place. What would we have seen? “In such moments, offering up his heart at the hour when the flowers of night […]
Star Trek’s ideal view of medicine is closer than we think.
Compared to a human lifetime, the Universe is ancient.But even a single year holds important changes. “We are not the same persons this year as last; nor are those we […]
These American artists once challenged the art world with epic land art. Where are today’s troublemakers?
Much to the chagrin of NASA rocket scientist Dr. Wernher von Braun, President Richard Nixon chose instead to greenlight the space shuttle program because it intrigued the military-industrial complex.
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If energy is always conserved, then what “gains” the energy that photons lose as the Universe expands? “…in every kind of chemical change no loss of matter occurs […] in all […]
We really did design the world in our own image. “Every great work makes the human face more admirable and richer, and that is its whole secret.” –Albert Camus Whenever we […]
With the full suite of evidence, there’s no escaping dark matter. “A cosmic mystery of immense proportions, once seemingly on the verge of solution, has deepened and left astronomers and […]
Take a glimpse into the blackness of deep space, and here’s what you’ll find. “Deep into that darkness peering, long I stood there, wondering, fearing, doubting, dreaming dreams no mortal […]
Saw “Solar System Questions” by xkcd? Here’s what science thinks it knows. “Put two ships in the open sea, without wind or tide, and, at last, they will come together. […]
Even the dead stars still shine today, and will for a long time. But they, too, will fade to black. “As the blackness of the night recedes so does the […]