Cosmology

Cosmic Queries: Mysterious Cosmology, with Sean Carroll

You Can Also Listen On<p>About This Episode<p>It’s time to explore the fascinating, mind-bending mysterious corners of the universe. Neil deGrasse Tyson …

Neil deGrasse Tyson

A century of general relativity: Astrophysics and cosmology

AAAS login provides access to <i>Science</i> for AAAS members, and access to other journals in the <i>Science</i> family to users who have purchased individual …

Theory of Relativity

What happened at the Big Bang?

The history of the universe from a few seconds after the Big Bang is fairly well understood, but what happened before then is largely mysterious. …

Space Science

Adventures in acoustic cosmology

A project that explores whether there is a musical equivalent to the curvature of spacetime will be presented on Thursday 6 July by Gavin Starks at …

Physics

Inside inflation: after the big bang

MASSACHUSETTS, 1981. A young physicist comes up with what seems to be an absurd idea: the universe went through a period of ultra-fast expansion just …

Space Science

A New Angle on Two Spiral Galaxies for Hubble's 27th Birthday

<b>Hubble Celebrates Its Anniversary with a Spectacular Pair of Galaxies</b>When the Hubble Space Telescope launched aboard the Space Shuttle Discovery on …

Astronomy

Aliens, Very Strange Universes and Brexit — Martin Rees Q&A

<i>This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed &</i> …

Universe

Cosmic web of 'dark matter bridges' link galaxies across the universe

First image of 'bridge' captured by Canadian astrophysicists.<p>Renaissance man Leonardo da Vinci once remarked: "Realize that everything connects to …

Dark Matter

2016 Isaac Asimov Memorial Debate: Is the Universe a Simulation?

American Museum of Natural History

Einstein’s latest anniversary marks the birth of modern cosmology

<i>First of two parts</i>Sometimes it seems like every year offers an occasion to celebrate some sort of Einstein anniversary.In 2015, everybody lauded the …

Physics

Reshaping the Universe: VR Landscapes Explore Mind-Bending Geometry

Virtual reality can take you to some far-out places — mountaintops, distant cities and even fantastical game worlds. A team of artists and …

Geometry

Strong Constraints on Self-Interacting Dark Matter with Light Mediators

Author(s): Torsten Bringmann, Felix Kahlhoefer, Kai Schmidt-Hoberg, and Parampreet WaliaModels of dark matter with velocity-dependent …

Physics

Why Is Hydrogen the Most Common Element in the Universe?

<i>This story was updated April 4 at 12:24 p.m. EDT.</i><p>Hydrogen is the most common element in the universe, but why is that?<p>To answer this question, "we …

Chemistry

Aliens, very strange universes and Brexit – Martin Rees Q&A

<i>Martin Rees is Emeritus Professor of Cosmology and Astrophysics, at the University of Cambridge, the Astronomer Royal, a member of Britain’s House of</i> …

Universe

Scientists offer a solution to the puzzle of the origin of matter in the universe

Most of the laws of nature treat particles and antiparticles equally, but stars and planets are made of particles, or matter, and not antiparticles, …

Physics

Dark energy may not exist at all

Enigmatic ‘dark energy’, thought to make up 68% of the universe, may not exist at all, according to a Hungarian-American team. The researchers …

Universe

Gravity may have saved the universe after the Big Bang

Physicists may now be able to explain why the universe did not collapse immediately after the Big Bang. Studies of the Higgs particle — discovered at …

Universe

One of the biggest mysteries in science: why is the universe dominated by matter?

<b>Why the universe is dominated by matter today, instead of being comprised of equal parts matter and antimatter, is one of the most intriguing</b> …

Universe

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

A Smattering Of Cool Space And Physics Facts

<b>Let this blog post serve as a primer for your travels, fellow Futurist, as you prepare for…</b><p><b>SPACE: THE FINAL FRONTIER.</b><p>I’ve always been fascinated with …

Space

BBC Radio 2 - Steve Wright in the Afternoon, Al Murray sits in, Professor Brian Cox: "Cosmology tells us we are both phyically insignificant, yet rare and valuable."

Professor Brian Cox: "Cosmology tells us we are both phyically insignificant, yet rare and valuable."<p>Al speaks to Brian about his UK arena tour 'Professor Brian Cox Live.'<p>Release date:<p>13 March 2017<p>Duration:<p>12 minutes

Aliens

Virtual Reality Poses the Same Riddles as the Cosmic Multiverse - Issue 46: Balance

On most days, we do not wake up anticipating that we may be suddenly thrust into the sky while popcorn shrimp rains down like confetti, as some guy …

Universe

Is there any such thing as nothing? In search of the cosmic void

The static of an old-style TV tuned to no channel is the best way to imagine it, James Owen Weatherall helpfully explains<p>Nothing will come of nothing, said Lear, because he wasn’t familiar with quantum physics. According to our current best theories, a region of space that contains nothing at all …

Physics

The Big Bang Was Not A Single Point In Time

<i>If the universe is infinite in extent does that mean that the big bang was a local event? originally appeared on Quora:</i> <i>the place to gain and share knowledge, empowering people to learn from others and better understand the world</i>.<p><b>Answer by Jay Wacker, researcher in particle physics and cosmology, on</b> …

Space Science

Evil Triumphs in These Multiverses, and God Is Powerless - Issue 46: Balance

The challenge that the multiverse poses for the idea of an all-good, all-powerful God is often focused on fine-tuning. If there are infinite …

Quantum Mechanics

Does time slow down because the universe is expanding at an accelerating rate?

If the universe is expanding at an accelerating rate, such that the galaxies' moving away from each other is accelerated, then time should also slow …

Universe

New Evidence for the Strange Idea that the Universe Is a Hologram - Facts So Romantic

One of the great mysteries of modern cosmology is how our universe can be so thermally uniform—the vast cosmos is filled with the lingering heat of …

Universe

Cosmology

On size scales of billions of light years, the universe is assumed to be uniform. This makes the universe models simpler and ``more reasonable''---if …

Space Science

Stalin, the big bang and quantum physics

Scientific research in Soviet times had to face limitations imposed by the regime. The official ideology, in particular, could not tolerate the …

Quantum Mechanics

This Is What the Oldest Light in the Universe Looks Like

Author: WIRED Photo DepartmentWIRED Photo Department<p>photo<p>02.25.17<p>07:00 am<p>Click through the gallery to see this week’s helping of the best the …

Astronomy