Waves and ripples in the Earth can reveal the location and depth of an explosion
  • Here’s the Real Reason Thanksgiving Makes You Sleepy

    EVERY YEAR, MANY of us gather around a Thanksgiving table and stuff our faces with food before ducking out of awkward conversations with distant relatives by blaming our post-feast food coma on “too much turkey.” It’s true that there is no slumber quite like that of a Thanksgiving nap,...
  • Why Can’t We Predict Earthquakes?

    In late October, Italian courts convicted six scientists and a government official—all members of the National Commission for the Forecast and Prevention of Major Risks—of manslaughter for giving “incomplete, imprecise and contradictory” information in the days leading up to an earthquake that struck L’Aquila on April 6, 2009. Tens...
  • Richter magnitude scale and energy equivalents in terms of TNT explosive force

    The following table lists the approximate energy equivalents in terms of TNT explosive force – though note that the earthquake energy is released underground rather than overground. Most energy from an earthquake is not transmitted to and through the surface; instead, it dissipates into the crust and other subsurface...
  • Two-Way Radios Reveal the Mysterious Social Lives of Sharks

    WHEN MOST PEOPLE think about sharks, they worry about the biting or chomping that might occur should they meet one. Marine biologists aren’t so self-centered. They consider deeper mysteries, like: Are sharks social? University of Delaware scientists recently used a radio tracking technology called acoustic tagging to reveal how sharks...
  • Planetary alignments do not cause earthquakes

    Planetary alignments (in astronomy called ‘conjunctions‘) excite the public, and raise inevitable questions in their minds. Astronomers, especially those involved in public outreach programs, are used to answering these questions. However, when believers in various mystical systems use alignments as evidence for their own beliefs, many astronomers are at...
  • Schiaparelli landing on Mars: How and When

    On October 16, Schiaparelli  separated from the ExoMars Trace Gas Orbiter spacecraft, and headed towards its final destination, the surface of Mars. Schiaparelli is an Entry, Descent, and landing demonstrator Module (EDM). As such, its lifetime on the red planet will be short—just several days. Scientific instruments will contribute...
  • NASA Finds More Evidence of Water Plumes on Jupiter’s Moon Europa

    LAST WEEK, NASA announced its scientists had found “surprising activity” on Jupiter’s moon Europa. And, just like you’d expect, the space-dork corner of the Internet whipped itself into a frenzy. Because that kind of vague statement can only mean they found aliens, right? Well, not really. But some people...
  • Dolphins have conversations like humans, study finds — but scientists have no idea what they’re saying

    LONDON – Two dolphins have been recorded for the first time having a conversation, after scientists developed an underwater microphone which could distinguish the animals’ different “voices.” Researchers have known for decades that the mammals have an advanced form of communication, using distinctive clicks and whistles to show they are excited, happy,...
  • Explosion rocks SpaceX launch site in Florida

    CAPE CANAVERAL, Fla. — A massive fireball and explosion erupted Thursday at SpaceX’s main launch pad, destroying a rocket as well as a satellite that Facebook was counting on to spread internet service in Africa. There were no injuries. The pad had been cleared of workers before what was supposed...
  • NASA to give free access to its research on the Internet; Here’s why it is important

    American space agency NASA has announced that their hundreds of research articles will be released online and can be accessed for free. Since its establishment in 1958, NASA has been gathering information on everything scientific but most of the research data had been kept hidden. The amount of information...

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