Astronomy, space and physics

By Mark Draper | Look up, be inspired...

The Quasar Main Sequence - Sky & Telescope

<b>A new diagram suggests two physical properties — how efficiently the black hole feeds and the system's orientation — lie behind quasars' …

Black Holes

Distant Black Hole’s Spin Clocked - Sky & Telescope

<b>A new measurement could be the farthest back in time astronomers have ever reached when measuring a black hole’s spin.</b><p>The quasar Q2237+0305 is split …

Telescopes

Astronomers Happen Upon The Most Distant Lensing Galaxy Ever Discovered

Planet X --"The 9th Planet May Have Influenced the Evolution of Life on Earth"

Though scientists have been looking for Planet X for 100 years, the possibility that it’s real got a big boost recently when researchers from Caltech …

In 2012, the Earth Dodged a Solar Bullet

In July 2012 the Earth dodged a bullet. Or more accurately, the bullet was misaimed. But had it hit, we’d have been in big trouble.<p>Phil Plait writes</b> …

Fermi Finds 'Transformer' Pulsar

For the first time, scientists have watched a pulsar transition from a low-energy system to a high one.

The Black Hole That Birthed the Big Bang

In his Allegory of the Cave, the Greek philosopher Plato described prisoners who have spent their entire lives chained to the wall of a dark cavern. …

Milky Way is about half as massive as Andromeda galaxy, say astronomers

An image of the Andromeda galaxy, Messier 31. Image credit: Adam Evans<p>Our Milky Way galaxy is less massive than astronomers previously thought, …

Collider Reveals First Glimpse of Higgs Boson at Work

An extremely rare collision of massive subatomic particles could reveal the nuts and bolts of how the subatomic particles called Higgs bosons impart mass to other particles.<p>The Higgs boson particle, which was detected for the first time in 2012, is essentially tossed around like a ball between two …

Physics

The 5 Massive New Telescopes That Will Change Astronomy Forever

The biggest building boom in the history of astronomy is upon us. In Chile and Hawaii and in space, astronomers are getting powerful telescopes that …

Astronomy

More Eyes on the Skies

The future, it is often said, belongs to those who plan for it. And astronomers have been busy working the proverbial smoke-filled rooms (or whatever passes for them today) where the destiny of big science is often shaped and crisscrossing one another in airports on fund-raising trips. Now they are …

Science

Stalking the Shadow Universe

For centuries people have found meaning — or thought they did — in what they could see in the sky, the shapes of the constellations echoing old myths, the sudden feathery intrusion of comets, the regular dances of the planets, the chains of galaxies, spanning unfathomable distances of time and …

Universe

Artificial spacetime experiment could show tantalizing effects of gravitational waves

The censors, name callers and twaddlers must be censored systematically<p>this time I suggested an IP ban, and I hope the site complies<br>this is ONE TIME …

Gravitational Waves

Scientist find that 80 percent of all light in the Universe is missing

According to observations made by the Cosmic Origins Spectrograph on board the Hubble Space Telescope, the Universe is <i>missing</i> 80 percent of all its …

Space

A New View of Europa

Europa is like a spherical ice cube that has partially melted. In fact, if you shook this small moon of Jupiter, you might hear a sloshing sound.<p>That’s because a deep, global ocean lies beneath the moon’s frozen, criss-crossed crust – an ocean that might be as much as 100 kilometers deep. In fact, …

Cool

What is the shape of the universe?

From World Science U, Science Unplugged provides hundreds of short video answers to a wide range of questions from "What is a Higgs Particle?" to …

Universe

Astronomers find supermassive black hole blasting molecular gas at 600,000 miles per hour from a galaxy

New research has solved a long-standing mystery surrounding the evolution of galaxies that deepens our understanding of the future of the Milky …

Physicists defend Big Bang wave announcement

Cosmic swirls that were hailed earlier this year as evidence for primordial gravitational waves – ripples in spacetime dating back to the early …

Space Science

How the faintest galaxies illuminated the early universe

Astronomers investigating behavior of the universe shortly after the Big Bang have made a surprising discovery: The smallest galaxies determine the …

Universe

Cosmic Concept: Seeing Stellar Weather in Other Galaxies

Webster Cash's Aragoscope would allow astronomers glimpses of faraway stars and galaxies in unprecedented resolution.<p><b>Webster Cash created the Starshade project</b>, a clever method to discover new worlds, because he was looking for a way to block out the light of a distant star, allowing a telescope to …

Cosmology

How Wheel Damage Affects Mars Rover Curiosity's Mission

If there were mechanics on Mars, NASA may have taken the Curiosity rover into the shop by now.<p>The 1-ton robot has accumulated quite a bit of wheel …

NASA

Earth's Magnetic Field Is Weakening 10 Times Faster Now

Earth's magnetic field, which protects the planet from huge blasts of deadly solar radiation, has been weakening over the past six months, according …

Space Science

NASA's 17 Apollo Moon Missions in Pictures

The Apollo Program<p>Credit: NASA/Discovery Films/ThinkFilm.<p>The Apollo program placed humans on the moon for the first time. The effort famously began …

Moon Missions

Cosmic-Ray Hotspot Discovered, Offering Clues on Deep Space Mystery

A powerful telescope may have found clues to the origin of ultra-high-energy particles that bombard the Earth.<p>A "hotspot" in the sky near the Big Dipper may be a major source of the ultra-high-energy cosmic rays that routinely bombard the Earth, report physicists using a giant array of specialized …

Science

How Big is Neptune?

The most distant planet from the sun, Neptune is the third most massive. Despite its great size, it was the last planet to be discovered, because it …

Image of the Day: New Supernova Explosion --Origin of Stardust in the Universe?

The origin of cosmic dust in galaxies is still a mystery. Cosmic dust consists of silicate and amorphous carbon grains — minerals also abundant on …

Team Hits Snag In Attempt To Rescue Vintage NASA Space Probe

The quest to rescue a 36-year-old NASA spacecraft will go on for at least another day, as a private group controlling the probe achieved only partial success with an engine firing Tuesday (July 8).<p>The private team operating NASA's International Sun-Earth Explorer 3 spacecraft (ISEE-3) aimed to fire …

NASA

Hubble sees spiral bridge of young stars between two ancient galaxies

claims. I posted that 3 hours ago when I went to my daughters to help out... but now I am home, but leaving again in a few minutes. He don't know …

Science