From NASA/JPL (October 17, 2013) - Newly discovered asteroid 2013 TV135 made a close approach to Earth on Sept. 16, when it came within about 4.2 million miles (6.7 million kilometers). The asteroid is initially estimated to be about 1,300 feet (400 meters) in size and its orbit carries it as far out as about three quarters of the distance to Jupiter's orbit and as close to the sun as Earth's orbit. It was discovered on Oct.
NOVA and NESTA are teaming up in a series of webinars for middle school and high school educators! Please register to join us for one or both of the following presentations at https://www.surveymonkey.com/s/B6MC6S9:
As ground-based gravitational-wave detectors get ready to score their first direct measurement of the ripples of spacetime, thoughts turn to space-based detectors that could see all the way back to the big bang.
Read the article online and view the video below.
Something big is about to happen on the sun. According to measurements from NASA-supported observatories, the sun's vast magnetic field is about to flip. "It looks like we're no more than 3 to 4 months away from a complete field reversal," says solar physicist Todd Hoeksema of Stanford University. "This change will have ripple effects throughout the solar system."
The Curiosity rover is seeking environments on Mars that could support life—or could have in the past. Earlier Mars missions found signs of water, but not organic carbon—life's essential building block. Watch the Curiosity team prepare to hunt for carbon at Mount Sharp, which holds a geologic record hundreds of millions of years old.
Science Bulletins is a production of the National Center for Science Literacy, Education, and Technology (NCSLET), part of the Department of Education at the American Museum of Natural History.
A new annotated guide to written, web, and audio-visual resources for teaching about planets orbiting other stars is now available for high-school and college instructors, their students, informal educators, and astronomy enthusiasts. Materials in the guide to this rapidly-changing branch of astronomy include video and audio files of lectures and interviews with leading scientists in the field, phone and tablet apps, a citizen-science web site, popular-level books and articles, and much more.
From AGI Public Relations (Alexandria, VA) - Scientists have recently confirmed the existence of an impact crater buried below the town of Decorah, Iowa. Scientists first discovered what they thought resembled a crater in 2008, but now it has been corroborated by an airborne geophysical survey. Scientists estimate the diameter of the crater at 5.5 kilometers wide, nearly five times the size of the Barringer Meteor Crater in Arizona.
The Mars rover Curiosity is currently traveling the surface looking for past habitable environments. In 2020, a new Martian rover will look for signs of past life, collect samples for possible future return to Earth, and demonstrate technology for future human exploration of the Red Planet.
Learn more from the video below and the following links: