Cosmology

Earth - Why we do not know what the Big Bang looked like

Science writer and astrophysicist Adam Becker explains why we cannot see the Big Bang to BBC Earth's Michael Marshall and Melissa Hogenboom, with help from the animators at <b>Pomona Pictures</b>.<p><i>Join over six million BBC Earth fans by liking us on Facebook, or follow us on Twitter and Instagram.</i><p><i>If you</i> …

Universe

‘Big Bang Theory’: Lead Cast Members’ Have Earned Almost $140 Million EACH, According To Reports

Kerching!<p>It’s no secret that the ‘Big Bang Theory’ cast take home huge wage packets, but that doesn’t make the total amount of cash they’ve each bagged over the years any less impressive.<p>The CBS comedy first began airing in 2007, and all five of its current lead stars - Jim Parsons, Kaley Cuoco, …

TV

Parallel Universes and the Truth Behind Them

The possibility of there being parallel universes out there like our own is quite high if you think about it. At a fundamental level, the idea of …

Universe

Euclid: ESA's Search for Dark Matter & Dark Energy

Euclid is a mission planned by the European Space Agency (ESA) that aims to learn more about the parts of the universe we can't see — specifically, …

Dark Matter

Can Dark Energy Kill Galaxies? - Issue 46: Balance

The universe is not just expanding; it’s accelerating. When cosmologists first realized this in 1998, it was alarming. The attractive gravitational …

Universe

Does Dark Matter Exist, Or Is Gravity Wrong? The Answer Lies Billions Of Years In The Past

When we look out at the luminous matter in the Universe — stars, galaxies, clusters of galaxies and the hot gas in and between them — it tells a couple of different stories. One is the story of how normal matter (based on atomic nuclei and electrons) comes together to emit, absorb and otherwise …

Dark Matter

…what is time…

“… the distinction between past, present and future is only a stubbornly persistent illusion.” Einstein<p>From the earth observer’s position in space, …

Quantum Mechanics

Universe’s Largest Structure Caught In The Act Of Forming

When galaxy clusters merge together, they form the largest objects the Universe will ever create.<p><i>“On a cosmic scale, our life is insignificant, yet</i> …

Astronomy

This Gigantic Ring of Galaxies Could Bring Einstein's Gravity Into Question

Moving way too fast for current physics to explain.<p>Scientists have discovered that a gigantic ring of galaxies stretching 10 million light-years wide …

Physics

Think We're Living in a Computer Simulation? Prove It

Science doesn’t have all the answers. There are plenty of things it may never prove, like whether there’s a God. Or whether we’re living in a …

Quantum Mechanics

Entropy and complexity: the surprising paradox behind our universe

One of the many big ideas in physicist Sean B. Carroll’s <i>The Big Picture: On the Origins of Life, Meaning, and the Universe Itself</i> is the concept that …

Universe

Telescope Eyeing Universe's First Stars Gets (Another) Big Boost

Throughout history, groups of people around the world have created stories about how the first stars arrived in the night sky. Some say the stars …

Astronomy

Science: Kiwi figuring out what happened after the Big Bang

Big Bang researchers at the University of Otago are making breakthroughs with new mathematical models that zoom in on the beginning of time.

Universe

Declining Rotation Curves at High Redshift?

A recent paper in Nature by Genzel et al. reports declining rotation curves for high redshift galaxies. I have been getting a lot of questions about …

Universe

Comments of the Week #153: from the expanding Universe to the CMB’s location

“Science and religion are both the same thing. They’re there; they’re life. If it’s not science, it’s not a fact.” -Chuck Berry<p>We always take pride …

Climate Change

How Did Scientists Determine The Size Of The Universe?

When some people stare up into the night sky, it can be an incredibly peaceful experience – one that inspires a sense of clarity (or insignificance). …

Universe

Ask Ethan: If the Universe is expanding, why aren’t we?

Space is getting bigger, but atoms, humans, Earth and our Milky Way stay the same size. How is this possible?<p><i>“The Universe is expanding the way your</i> …

Universe

NASA Looking To Create the Coldest Place in the Universe

The cosmos, in general, has a temperature of around -270 degrees Celsius (almost 3 degrees Celsius above 0 Kelvin) thanks to the cosmic microwave …

Universe

The Big Bang – or the Big Bounce? By Sean Carroll

The physicist explains new theories around the origin of the universe

Universe

Where Is The Cosmic Microwave Background?

When you look out at the distant Universe, you’re also looking back in time, thanks to the fact that the speed of light — although huge — is finite. So if you look back at the farthest thing you can see, at the very first light visible to our equipment, you’re bound to reach something. In our …

Universe

Let the 10th Doctor Teach You Einstein's General Relativity in 3 Minutes

Who better to explain space-time?<p>On 14 March 2017, the world celebrated what would have been Albert Einstein's 138th birthday. But while all of us …

Physics

THE BEADY EYE SAYS: NO ONE HAS EVER REALLY SEEN AN ATOM.

( A Fifteen minute read with a lot of head scratching)<p>Let me from the off state that I am no Scientist, so don’t expect this post to make much sense, …

Dark Matter

Cosmological ruler could help us get the measure of dark energy

Measuring how the distance between galaxies changes is key to working out how dark energy drives the universe’s accelerating expansion – now a new …

Universe

Monster Galaxy Cluster Sheds Light on Cosmic Microwave Background (Image)

One of the largest galaxy clusters ever seen shines bright in this image from the Hubble Space Telescope. Called RX J1347.5-1145, this cluster lies 5 …

Astronomy

A 3D Animation That Compares the Scale of the Smallest Known Particles to the Universe Itself

A 3D animation by Reigarw Comparisons measures the scale of the smallest known particles to the size of the universe itself, scaling up incrementally …

Universe

For pi day (3/14): 8 eerie facts that make us believe pi was invented by aliens

Finding a formula for pi took thousands of years<p>The notion of a constant from which could be derived the area of a circle seems to have originated as …

Raspberry Pi

The Kavli Foundation Q&A: How Did the First Quasars Form?

<b>Thanks to a record haul of new, ultra-distant quasars—powerhouses of light from the farthest reaches of the universe—astrophysicists can now piece</b> …

Astronomy

J. Richard Gott: What’s the Value of Pi in Your Universe?

Carl Sagan’s sci-fi novel <i>Contact</i> famously introduced wormholes for rapid transit between the stars. Carl had asked his friend Kip Thorne to tell him …

Mathematics

3D Size Comparison of Everything in the Universe is Awe-Inspiring

Like a cross between the opening credits of <i>Contact</i> and the Simpson’s Universe couch gag, this video gives us an ever expanding look at how the …

Universe

What are Boltzmann brains, and what challenge do they pose to the multiverse hypothesis?

Christianity and the progress of scienceI thought I would turn to the atheist theoretical physicist Sean Carroll, who has previously debated William …

Universe