Ethan Siegel
A theoretical astrophysicist and science writer, host of popular podcast "Starts with a Bang!"
Ethan Siegel is a Ph.D. astrophysicist and author of "Starts with a Bang!" He is a science communicator, who professes physics and astronomy at various colleges. He has won numerous awards for science writing since 2008 for his blog, including the award for best science blog by the Institute of Physics. His two books "Treknology: The Science of Star Trek from Tricorders to Warp Drive" and "Beyond the Galaxy: How humanity looked beyond our Milky Way and discovered the entire Universe" are available for purchase at Amazon. Follow him on Twitter @startswithabang.
And why do some of them appear to be right here in our own galaxy, which formed much later? Image credit: DSS, of SMSS J031300.36–670839.3, candidate for “oldest star.” “Let […]
Why quantum entanglement spooked Einstein his entire life. Image credit: Nature, October 2006 (vol 2 no 10). ‘Tis the season of ghouls, goblins, witches, demons, and things that go bump […]
The last object in the entire Messier Catalogue is faint, elusive, and the most common type of galaxy in the Universe! Image credit: Adam Block / NOAO / AURA / […]
How one person singlehandedly created a forest, saved an island, and changed the world. Image credit: Amarjyoti Borah, via Al Jazeera. “The trees are man’s best friends; but man has […]
When you throw more fuel on the fire, why does it burn out in less time? Image credit: Wikimedia Commons user Fir0002. “The light that burns twice as bright burns […]
How the show most likely isn’t sending home the right people every week. Image credit: NBC Universal / The Biggest Loser, Season 13 finale. “Our external environment no longer seems […]
The last serious anti-Big Bang scientists went to their graves lamenting the lack of good alternatives. Here why there are none. Image credit: NASA / WMAP Science Team. “We were […]
And what it might — and might not — give us useful insights into. Image credit: Karen46 of http://www.freeimages.com/profile/karen46. “The anthropic principle – the idea that our universe has the properties it does because […]
With the iconic pillars and fairy inside, this star-forming region in our galactic plane just might be the most spectacular of them all. Image credit: ESO, via http://www.eso.org/public/images/eso0926a/. “The most […]
The terrible injustice of Jerrie Cobb, who deserved to be the first female astronaut, yet never made it to space at all. Image credit: © 2011 501(c)(3) Non Profit National […]
Sure, the Universe is expanding, and that expansion is accelerating. But beyond simply calling the cause “dark energy,” what do we know about it? Image credit: NASA, ESA, H. Teplitz […]
And the undeniable physics of how fusion actually works. Image credit: The FIRE Place, via http://fire.pppl.gov/. “Between cold fusion and respectable science there is virtually no communication at all. …because the […]
What the “independent tests” really teach us, if we’re willing to look carefully. Image credit: cold fusion hoax by Juan-Louis Naudin, 2003. “There’s a mark born every minute, and one […]
Perhaps the most spectacular example of rebirth in our galaxy, this cavernous nebula is giving rise to the next generation of stars! Image credit: ESO, via http://www.eso.org/public/images/eso0925a/. “For in the […]
How one artist is transforming the modern metropolis into Tolkien-style middle Earth masterpieces. Image credit: Stentor Danielson, via his Tumblr blog, Mapsbergh. “Fantasy is silver and scarlet, indigo and azure, […]
The densest, most massive objects in the Universe will live an awfully long time, but not forever. Here’s what happens to them. Image credit: Gemini Observatory/AURA illustration by Lynette Cook. […]
And how, in the end, they help us gain the resolution of a space-based telescope without leaving the ground! Image credit: Y. Beletsky/ESO, via http://www.eso.org/public/images/potw1036a/. “But certainly the laser proved […]
Other particles — electrons, neutrinos, photons and more — can exist on their own. But quarks never will. Here’s why. Image credit: Wikimedia Commons user Maschen under C.C.-1.0. “In physics, you don’t have to […]
It might not sound impressive, but the physics behind it — and the power of its applications — are literally world-changing. Image credit: Orphek LEDs, via http://orphek.com/about/aquarium-led-lighting/. “Everyone must leave something behind when he […]
With a planetary nebula, over 80,000 stars and a distance of only 10,000 light-years, it’s one of the most rewarding globulars of all! Image credit: R. Columbari, via http://asterisk.apod.com/viewtopic.php?t=31833. “I […]
Make the world a better place — fighting disease and poverty while helping move science forward — with your computer’s spare time! Image credit: The Charity Engine, via slideshare.net. “While we do our good […]
There’s five times as much dark matter as normal matter in the Universe. But how much of that matters for black holes? Image credit: NASA/ESA Hubble Space Telescope collaboration. “A […]
It’s been 13.8 billion years since the Big Bang, but our observable Universe is much bigger than just 13.8 billion light years! Image credit: NASA; ESA; G. Illingworth, D. Magee, […]
What the first signs of life beyond our Solar System will look like. Image credit: Tanga et al., 2012. “Language… has created the word ‘loneliness’ to express the pain of […]
How the Cosmic Microwave Background — the Big Bang’s leftover radiation glow — continues to shed light on the birth of our Universe. Image credit: ESA and the Planck Collaboration. The announcement of the […]
It took Messier himself more than a decade to observe it, but the reward is a glimpse into the ancient Universe! Image credit: Daniel Verschatse, via http://www.astrosurf.com/antilhue/m55.htm. “The only thing […]
From A to Zucchini, learn how to get anything out! Image credit: The A-steam, via http://www.theasteam.co.uk/stain-odour-removal/. “You can clean your sword as much as you want but the blood still stains […]
If something went horribly wrong, could you possibly return to Earth? Image credit: ISRO. “I sometimes catch myself looking up at the Moon, remembering the changes of fortune in our […]
How the entire history of the Universe gave rise to us, in ten giant leaps. Image credit: Zosia Rostomian, Lawrence Berkeley National Laboratory. “It surprises me how disinterested we are […]
In theory, there’s a way to push the cosmic reset button. Here’s how. “Don’t be too proud of this technological terror you’ve constructed. The ability to destroy a planet is […]