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What Stephen Hawking Really Said About Black Holes

20 Amazing Chemical Reaction GIFs

Blood meets hydrogen peroxide<p>Source: Iitmne<p>Sodium acetate crystallization<p>Source: Imgur<p>Belousov–Zhabotinsky reaction<p>Source: GIF Trunk<p>Water bridge …

Space 2013: a year in the life of the universe - in pictures

From powerful solar flares erupting on the surface of the Sun, to spectacular storms on Saturn, exquisite new pictures of distant galaxies, and the infamous Chelyabinsk meteor that streaked across Russia, Robin McKie charts the course of a year in the life of the cosmos in a series of spectacular …

APOD: Sharpless 308: Star Bubble (2013 Dec 24) Image Credit & Copyright: Jeff Husted http://apod.nasa.gov/apod/ap131224.html Explanation: Blown by fast winds from a hot, massive star, this cosmic bubble is huge. Cataloged as Sharpless 2-308 it lies some 5,200 light-years away toward the constellation of the Big Dog (Canis Major) and covers slightly more of the sky than a Full Moon. That corresponds to a diameter of 60 light-years at its estimated distance. The massive star that created the bubble, a Wolf-Rayet star, is the bright one near the center of the nebula. Wolf-Rayet stars have over 20 times the mass of the Sun and are thought to be in a brief, pre-supernova phase of massive star evolution. Fast winds from this Wolf-Rayet star create the bubble-shaped nebula as they sweep up slower moving material from an earlier phase of evolution. The windblown nebula has an age of about 70,000 years. Relatively faint emission captured in the expansive image is dominated by the glow of ionized oxygen atoms mapped to violet hues. http://www.crabnebula.us/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131224 #APOD

Fun science experiments to try at home

If you have these everyday ingredients, you can do fun science experiments at home, as the Head Squeeze team demonstrates.<p>Pepper, washing detergent, vinegar and an egg. If you have any of these ingredients to hand, you can do science at home.<p>From chemical reactions to strange physics, the Head …

The shadow genome: why DNA isn't destiny

Epigenetics is changing the way scientists look at genetic inheritance<p>How does a mother’s weight-loss surgery affect her child’s risk of obesity? It’s a question scientists have been struggling with since a Laval University study published in April, which looked at children born to mothers who’d …

APOD: The Bubble Nebula (2013 Dec 14) Image Credit & Copyright: J-P Metsävainio (Astro Anarchy) http://apod.nasa.gov/apod/ap131214.html Explanation: Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 10 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble's center is a hot, O star, several hundred thousand times more luminous and around 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star has blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula lies a mere 11,000 light-years away toward the boastful constellation Cassiopeia. This natural looking view of the cosmic bubble is composed from narrowband image data, also used to create a 3D model. http://www.astroanarchy.blogspot.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=131214 #APOD

Crab Nebula: Noble Gas Molecule Found in Crab Nebula--a First in Space, Say Researchers

The Crab Nebula has a noble gas molecule, researchers said this week, noting that the find is startling because it has been assumed noble gas …

Gaia spacecraft set for launch on mission to map a billion stars

The European Space Agency's Gaia spacecraft is poised to begin its mission to map a billion stars in our galaxy to an unprecedented level of detail, with its scheduled launch on Thursday.<p>"It's going to be the most accurate and the most detailed 3D map of stars there has ever been," said Dr Ralph …

The Universe Without a Big Bang? --Intriguing New Equations Show a "Phased" Creation

Everybody knows of the transitions between liquid, solid and gaseous phases. But also time and space can undergo a phase transition, as the …

ISON Q&A: Perihelion

Today we answer questions about Comet ISON and perihelion. What do you need to know about ISON? Tell us on Facebook, Twitter and Google+, and we'll …

ISON: One Last Look?

People are writing loving obituaries for Comet ISON, the sungrazer who lived life a little too close to the edge. Is that it? Are we ISON'ed out? In …

Mars rover finds chemical ingredients for life to have thrived

Billions of years ago, when early life was just taking hold on Earth, Mars was home to an ancient lake filled with the right chemical ingredients for life to thrive, scientists said Monday.<p>Drilling into dry rock, NASA's Curiosity rover has discovered signs that Gale Crater was once watery, perhaps …

Big Martian Lake!

Why it's time for brain science to ditch the 'Venus and Mars' cliche

As hardy perennials go, there is little to beat that science hacks' favourite: the hard-wiring of male and female brains. For more than 30 years, I have seen a stream of tales about gender differences in brain structure under headlines that assure me that from birth men are innately more rational …

Newborn babies may be more developed than we think

My baby could not look more like a subject in a laboratory experiment. Wearing a soft white skullcap attached by long wires to an EEG machine measuring his brain activity, he is also surrounded by computer equipment and fussing researchers at University College London. "Hopefully you'll be …

"Life on Planets of Red Dwarf Stars May Be More Evolved than on Earth"

Six percent of red-dwarf stars have habitable, Earth-sized planets, astronomers at the Harvard-Smithsonian Center for Astrophysics (CfA) have found. …

New planet 11 times larger than Jupiter stumps scientists

A group of scientists have discovered a distant planet that is 11 times bigger than the largest planet in our solar system: Jupiter. But the size of …

Ask Ethan #12: How far is the distant Universe?

“Light thinks it travels faster than anything but it is wrong. No matter how fast light travels, it finds the darkness has always got there first, …

Gamma ray burst could upend leading physics theories

When the core of a massive star collapses, it can eject a jet of gas into space at nearly the speed of light. Collisions between the fast-moving gas …

Physics

Doctor Who in numbers

51% of the Doctor's adventures have been set in the future<p>51% of Doctor Who's stories have been set in the future while 23% have been set in the past. Earth has been the most popular location (47% of stories set on the planet) while another 33% of stories have been set in alien worlds, 16% on …

Doctor Who: 50 things you didn't know

1. The Doctor lives longer in France<p>French audiences watching Doctor Who dubbed into their native tongue obviously can’t be expected to know the difference between Christopher Eccleston’s Lancashire vowels and David Tennant’s adopted southern accent – but isn’t there some metaphysical conundrum …