Fred Ladd

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Gas cloud's fate could reveal information on growth of supermassive black holes

(Phys.org) —Right now a doomed gas cloud is edging ever closer to the supermassive black hole at the center of our Milky Way galaxy. These black …

Saturn's Moon Enceladus Is Now A Top Candidate For Life

New gravity measurements determined Enceladus has a liquid water sea about as large as Lake Superior.<p>Buried under miles of ice, astronomers have detected a liquid water sea on one of Saturn's moons, Enceladus. The sea is about the size of Lake Superior and it touches Enceladus' silicate core… which …

Astronomy

Hubble spots comet heading toward Mars, spewing space dust

Hubble has spotted a comet named Sliding Spring spewing gas and dust into space as it zooms to a close encounter with Mars in October.<p>Researchers working with the Hubble Space Telescope recently released two images of the comet. The image on the left, captured March 11, shows what the Hubble saw. …

Kidnapped stars, Martian frost and the Rotten Egg Nebula – in pictures

This month's roundup of the best space-related imagery in the known universe includes a supernova, a cluster of stars kidnapped from a neighbouring galaxy by the Milky Way, an eggy nebula and carbon dioxide frost on Mars

Supermassive Black Holes Were Born Big, Spacecraft Data Suggest

The gigantic black holes that lurk at the hearts of galaxies were apparently born big.<p>The central black holes in dwarf galaxies — the "seeds" that grow into the monsters at the core of the Milky Way and other large galaxies — are probably surprisingly weighty, containing 1,000 to 10,000 times the …

Use Big Dipper to locate Hunting Dogs

Tonight, or any March evening, look for the Big Dipper in the northeast sky. This star pattern – one of the most noticeable from Northern Hemisphere …

Science Jokes From Our Twitter Followers

Check out some of our favorite science jokes.<p>On Monday, we asked our Twitter followers, "What's your favorite science joke?" The nerds delivered. Here are our favorite science jokes, organized by subject.<p>Chemistry<p>@PopSci I was going to tell a joke about sodium, but Na.— Ian Haygreen (@IanHaygreen) …

historiANatural (freshphotons: Cosmic Inflation Explained.)

Relativity Isn't Relative

Asteroid-Capture Mission Will Bring Mars Within Reach, NASA Chief Says

NASA's wild plan to capture an asteroid and park it near the moon is only one step on the way to Mars, NASA chief Charles Bolden said Wednesday …

Distant new world may point to undiscovered planets in solar system

Today’s discovery of dwarf planet 2012 VP113 suggests that many planet-sized worlds lurk undetected beyond the orbit of Pluto, maybe even a giant ‘Super Earth’<p>We learned today that our solar system is larger than we had previously known. A newly discovered, extremely distant dwarf planet with the …

A live view of the solar system

A live view of the solar system and planetary positions today<p>This site brings you face to face with the solar system as it is now... and also how it …

Dwarf planet discovery hints at a hidden Super Earth in solar system

Astronomers have increased the size of the observable solar system after spotting a 450-km wide object orbiting the sun.<p>The lump of ice and rock circles the sun at a greater distance than any known object, and never gets closer than 12bn kilometres – 80 times the distance from Earth to the sun.<p>If …

New Dwarf Planet Found At The Solar System's Outer Limits

Scientists have spotted a new dwarf planet at the edge of our solar system. It's a kind of pink ice ball that's way out there, far beyond Pluto.<p>Astronomers used to think this region of space was a no man's land. But the new findings suggest that it holds many small worlds — and there are even hints …

Drake Equation: Estimating the Odds of Finding E.T.

The Drake Equation is used to estimate the number of communicating civilizations in the cosmos, or more simply put, the odds of finding intelligent …

Exoplanets