The Universe is out there, waiting for you to discover it.
Our mission: to answer, scientifically, the biggest questions of all.
- What is our Universe made of?
- How did it become the way it is today?
- Where did everything come from?
- What is the ultimate fate of the cosmos?
For countless generations, these were questions without resolutions. Now, for the first time in history, we have scientific answers. Starts With A Bang, written by Dr. Ethan Siegel, brings these stories — of what we know and how we know it — directly to you.
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Featured
Why power generated through nuclear fusion will be the future, but not the present, solution to humanity’s energy needs.
It’s a strange idea to consider: that a tiny building block of matter, the atomic nucleus, holds the greatest potential for energy release.
And yet, it’s true; while electron transitions in atoms or molecules typically release energy on the order of ~1 electron-Volt, nuclear transitions between different configurations release energies a million times as great, on the order of ~1 Mega-electron-Volt.
Popular
From before the Big Bang to the present day, the Universe goes through many eras. Dark energy heralds the final one.
A wild, compelling idea without a direct, practical test, the Multiverse is highly controversial. But its supporting pillars sure are stable.
The surface and atmosphere is colored by ferric oxides. Beneath a very thin layer, mere millimeters deep in places, it’s not red anymore.
The first supernova ever discovered through its X-rays has an enormously powerful engine at its core. It’s unlike anything ever seen.
Just 13.8 billion years after the hot Big Bang, we can see 46.1 billion light-years away in all directions. Doesn’t that violate…something?
All Stories
An animal becomes so much more the instant you first love them. Image credit: me, of my first dog, Cordelia, back in 2008. “Dogs are our link to paradise. They […]
The physics of one of the rarest and most spectacular sunset sights ever seen! Image credit: © Mila Zinkova / Creative Commons. “It does no harm to the romance of […]
The largest structures in the Universe are phantasms, in the process of self-destructing. Image credit: NASA, N. Benitez (JHU), T. Broadhurst (Racah Institute of Physics/The Hebrew University), H. Ford (JHU), […]
How Worlds Thought in the 1960s to be Circling Barnard’s Star Turned out to be Illusions. Image via: http://www.wingmakers.co.nz/universe/extrasolar/Barnards.html. In this golden age of exoplanet discovery, it is hard to […]
At the top of the Teapot, a fantastic cluster dotted with Red Giants awaits. Image credit: © 2005–2009 by Rainer Sparenberg, via http://www.airglow.de/html/starclusters/m28.html. “The most difficult thing is the decision […]
Supermoons are both super and common, but they’re only a tiny slice of our nearest neighbor’s magnificent journey. Image credit: ESA / NASA and the International Space Station. “O, swear […]
How can salmon get upstream when their waters are blocked by dams? You’ve got to see this new innovation! Image credit: William Bain / flickr. “You ain’t supposed to get […]
The scariest of all possible fates results in the ultimate destruction of everything that ever was or will be. Image credit: Boren-Simon 2.8–8 ED POWERNEWT Astrograph Image Gallery. “Why do […]
Do you know all of them, and what makes them so bright? Image credit: source unknown, but it contains #7 and #9 on the list, via http://st.gdefon.com/wallpapers_original/wallpapers/428170_orion_yupiter_betelgejze_rigel_aldebaran_pleyady_y_7408x4602_(www.GdeFon.ru).jpg. “I’m hungry for […]
Letting data and evidence, not fears or ideology, guide you is harder than you’d imagine. Image credit: European XFEL, via http://www.xfel.eu/research/benefits/. “Enlighten the people generally, and tyranny and oppressions of […]
An ancient relic from the young Universe is covered in surprising riches near the galactic center. Image credit: Paul Chasse (astronewb11) of flickr, via https://www.flickr.com/photos/astronewb2011/7247070648/. “Ancients knew that you need […]
What happens when an artist decides to share her sketchbook with her four-year-old daughter? Image credit: Mica & Myla Hendricks, via their (fully funded) Kickstarter page. “If you can’t share, […]
If we came to be just a few billion years earlier, we’d never know. Image credit: Jean-Charles Cuillandre (CFHT) & Giovanni Anselmi (Coelum Astronomia), Hawaiian Starlight. “After all the ‘Universe’ […]
What every middle-to-high schooler should know. Image credit: Bayside STEM academy, via Stanford at https://ed.stanford.edu/news/new-design-thinking-curriculum-targets-middle-school-students. “Education is an admirable thing, but it is well to remember from time to time […]
There’s plenty of gas, dust, planets and rocky bodies out there. Could some combination of them explain dark matter? Image credit: Chris Blake and Sam Moorfield, via http://www.sdss3.org/surveys/boss.php. “When a […]
Through a telescope, this swarm of star appears extremely oblate. But is it really? Image credit: via http://vilagbiztonsag.hu/keptar/displayimage.php?album=19&pid=19138. “If I take dust in my hand and ask you if that […]
How to turn the greatest NASA images in history into wallpaper, curtains, fabric and more! Image credit: Elinor Medezinski, Suprime-Cam/Subaru Telescope; ZwCl 0024–17. “I’m coming back in… and it’s the […]
And, in general, how would you be able to tell? Image credit: Mahdi Zamani, via http://www.twanight.org/newTWAN/guests_photos.asp?ID=5001660. “When I was ten all I knew was that I hated the weird words […]
The top 10 pictures from a Russian cosmonaut you’ve never heard of. Image credit: NASA, Space Shuttle Atlantis, during mission STS-132. “We came all this way to explore the Moon, […]
How a fundamental but unstable particle might be our first window into particle physics beyond the Standard Model. Image credit: Muon g-2 magnet, courtesy of Fermilab. “You suddenly realize that […]
No other idea explains even two of these. Image credit: NASA / CXC / ESO WFI / Magellan composite. Any recent article about the remaining mysteries of the Universe will […]
The farther north you are, the harder this wonder is to see. But oh, the rewarding sights for those who find it! Image credit: Emi; Ivamov, via http://www.emilivanov.com/CCD%20Images/M06_LRGB.htm. “Happiness is […]
A sign that warns you about bumping your head… on the sign itself! Image credit: Matt Groening, the Simpsons, Season 1. “I went down the street to the 24-hour grocery. […]
With all the matter-and-energy so close together and so dense at the moment of the Big Bang, why didn’t it recollapse? Image credit: Mark A. Garlick / University of Warwick. […]
There have been many supernovae in the Milky Way seen over the past 2,000 years, but nobody ever saw the most recent ones! Image credit: NASA/CXC/NCSU/K.Borkowski et al. “When I […]
Where all the structure in the cosmos came from, and we aren’t forming new ones anymore. Image credit: Andreas Berlind, via http://astro.phy.vanderbilt.edu/~berlinaa/work_research.html. “To be loyal to myself is to allow […]
Is there a limit to how small a length can be? Image credit: Sabine Hossenfelder. Good ideas start with a question. Great ideas start with a question that comes back […]
Nearly 250 years since its discovery, this dense, brilliant core was found to have our Milky Way’s first globular-based black hole! Image credit: Paulino Maldonado, via http://observatorioelojodeowi.blogspot.com/2011/05/subo-algunas-fotografias-de-espacio.html. “And then you […]
You’ve got to see what happens when this man realizes he’s talking to the living legend herself. Image credit: GayCalgary Magazine, via http://www.gaycalgary.com/Magazine.aspx?id=109&article=3182. “I’m just thankful that I’m still here. […]
We don’t know the nature of either dark matter or dark energy: 95% of our Universe. Does that mean the Big Bang is in doubt? Image credit: wiseGEEK, © 2003 — 2014 […]