Saravana Kumar

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Titan's Lakes, Saturn Shakes, and a Nebula Bakes

For a Nearly Hundred-foot-long Jellyfish, It’s Christmas All Year

<b>Like the fuzzy tinsel used to deck Christmas trees, this jellyfish relative—known as Apolemia—looks soft enough to cuddle. But keep in mind that it’s also armed with tiny poison-filled needles, which it shoots into animals unfortunate enough to blunder into it.</b><p><i>Apolemia</i> is part of a group called the …

This Year's Biggest Discoveries in Science

From the edge of the solar wind to ancient human DNA, science made big strides in 2013.<p>Science mattered more than ever in 2013. Climate science questions raged after Super Typhoon Haiyan pummeled the Philippines. And scientific expertise figured in disarmament debates in Syria and in Iran's …

Newfound Monster Supernova Breaks Records

Changing Planet<p>A small portion of one of the fields from the Supernova Legacy Survey showing SNLS-06D4eu and its host galaxy (arrow). Superbright points of light with spikes are stars in the foreground. Credit: UCSB<p><b>A newly discovered exploding star may have broken two cosmic records, as it’s both</b> …

Top 5 Space Station Repair Spacewalk Dangers

Changing Planet<p>This digital animation shows NASA astronauts performing spacewalks to repair a faulty cooling pump on the outside of the International Space Station. Credit: NASA TV<p><b>Tensions are high as the astronauts aboard the International Space Station ready themselves to conduct a series of</b> …

Distant Stars, Saturn's Bars, and a Trip to Mars

A supernova's ghost, Saturn's unearthly rings, and the next Mars mission's send-off round out the week's best space pictures.

IEA World Outlook: Six Key Trends Shaping the Energy Future

New technologies and discoveries are redrawing the global energy map, says the International Energy Agency. But the world is slow to curb its fossil fuel dependence.<p><b>Thanks to "fracking," the United States is reaching the top spot among world oil producers sooner than expected, and is "well on its</b> …

This Week’s Most Intriguing Discoveries

It's raining cats and dogs—and unicorns. Here's the week's five most intriguing discoveries.<p><b>Super typhoon Haiyan was unquestionably the week's top story, after it pummeled the Philippines and left its citizens in distress. (See "5 Reasons the Philippines Is So Disaster Prone".)</b><p>In between covering …

7 Sky Events This Week: Double Comet Flybys and Lunar Encounters

Changing Planet<p>This artist rendering shows NASA’s MESSENGER spacecraft in orbit around the planet Mercury. Image courtesy NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington<p><b>Comets dominate the pre-dawn skies and their flybys of neighboring planets offer</b> …

Active Volcano Found Under Antarctic Ice: Eruption Could Raise Sea Levels

Inevitable eruption will speed up ice loss on frozen continent, study says.<p><b>A newly discovered volcano found buried beneath a thick layer of ice in Antarctica could speed up ice loss and raise global sea levels when it erupts, scientists say.</b><p>The finding, detailed in the current issue of <i>Nature</i> …

Manned Mission to Largest Known Asteroid Designed

Sending people to Ceres is no harder than sending them to Mars, study says.<p><b>Rocket scientists who have plotted a course for a human mission to the largest known asteroid, Ceres, say that such a voyage may not be much more challenging than sending people to Mars, according to a new study.</b><p>Research …