ayush rana

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Nasa's Opportunity rover finds Martian water appropriate for the origin of life

Opportunity has made one of its greatest scientific discoveries so far. Clay minerals in a rock called Esperance clearly indicate that neutral water …

APOD: Flowing Auroras Over Norway (2013 Jun 09) Image Credit & Copyright: Tor Even Mathisen; Music: Per Wollen; Vocals: Silje Beate Nilssen http://apod.nasa.gov/apod/ap130609.html http://vimeo.com/16917950 Explanation: Have you ever seen an aurora? Auroras are occurring again with increasing frequency. With the Sun peaking at its eleven year maximum in aurora-triggering activity, it is exhibiting a greater abundance of sunspots, flares, and coronal mass ejections. Solar activity like this typically expels charged particles into the Solar System, some of which impact Earth's magnetosphere and trigger Earthly auroras. In late 2010, the above timelapse displays of picturesque auroras were captured above Tromsø, Norway. Curtains of auroral light, usually green, flow, shimmer and dance as energetic particles fall toward the Earth and excite atoms of air high up in the Earth's atmosphere. There may even be opportunities to see auroras tonight, as recent solar explosions have triggered numerous aurora sightings over the past few days. http://vimeo.com/tittentem Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=130609 Starship Asterisk* • On This Day in APOD http://asterisk.apod.com/view_retro.php?date=0609

WIRED Space Photo of the Day 2013 | WIRED

Jan. 19, 2014: Solar X-Flare<p>The largest sunspot group of the solar cycle unleashed a large (X1.2 class) flare just when it was facing right towards …

APOD: The Large Magellanic Cloud in UV (2013 Jun 10) Image Credit: UV: NASA, Swift, S. Immler (Goddard) & M. Siegel (Penn State); Optical: Axel Mellinger (CMU) http://apod.nasa.gov/apod/ap130610.html Explanation: Where are the hottest stars in the nearest galaxies? To help find out, NASA commissioned its Earth-orbiting Swift satellite to compile a multi-image mosaic of the neighboring Large Magellanic Cloud (LMC) galaxy in ultraviolet light. The above image shows where recently formed stars occur in the LMC, as the most massive of these young stars shine brightly in blue and ultraviolet. In contrast, visible in an image roll-over, a more familiar view of the LMC in visible light better highlights older stars. On the upper left is one of the largest star forming regions known in the entire Local Group of galaxies: the Tarantula Nebula. The Large Magellanic Cloud and its smaller companion the Small Magellanic Cloud are easily visible with the unaided eye to sky enthusiasts with a view of the southern sky. Detailed inspection of the above image is allowing a better galaxy-comprehensive picture for how star formation occurs. http://www.nasa.gov/mission_pages/swift/bursts/magellanic-uv.html Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=130610 Starship Asterisk* • On This Day in APOD http://asterisk.apod.com/view_retro.php?date=0610

Miracle material: the graphene revolution

The race is on to harness the potential of graphene, a substance that is harder than diamond, yet incredibly flexible, and the world’s best conductor of electricity.<p>Kostya Novoselov tends to wear an air of slight distraction. But when a problem or topic of conversation sparks his curiosity, his …

Nanotech

TEDGlobal welcomes robot cockroaches

<b>A project aimed at creating cyborg cockroaches is being launched at the TEDGlobal conference in Edinburgh.</b><p>The insects, intended as a neuroscience learning tool, are controlled via a mobile phone.<p>The Technology, Entertainment and Design conference specialises in showcasing new technologies.<p>The theme …

TED Talks