Hdin Hafizuddin

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Deep-Sea Dwellers Make A Natural Antibiotic

Humans aren't the only species that try to get rid of bacteria<p>On hot vents deep underneath the Atlantic and Pacific oceans, there lives something unusual: a gene that fights bacteria. The gene belongs to a microscopic organism, scientifically named <i>Aciduliprofundum boonei</i>, that lives in the extreme …

In the Light of Milkyway

APOD: In the Center of the Lagoon Nebula (2014 Aug 20) Image Credit: Hubble Legacy Archive, NASA, ESA Processing & Licence: Judy Schmidt http://apod.nasa.gov/apod/ap140820.html Explanation: The center of the Lagoon Nebula is a whirlwind of spectacular star formation. Visible near the image center, at least two long funnel-shaped clouds, each roughly half a light-year long, have been formed by extreme stellar winds and intense energetic starlight. The tremendously bright nearby star, Herschel 36, lights the area. Walls of dust hide and redden other hot young stars. As energy from these stars pours into the cool dust and gas, large temperature differences in adjoining regions can be created generating shearing winds which may cause the funnels. This picture, spanning about 5 light years, combines images taken by the orbiting Hubble Space Telescope. The Lagoon Nebula, also known as M8, lies about 5,000 light years distant toward the constellation of Sagittarius. http://hla.stsci.edu/ http://www.nasa.gov/ http://www.esa.int/ http://geckzilla.com/ Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140820 #APOD

APOD: Collapse in Hebes Chasma on Mars (2014 Aug 12) Image Credit & Copyright: ESA/DLR/FU Berlin (G. Neukum) http://apod.nasa.gov/apod/ap140812.html Explanation: What's happened in Hebes Chasma on Mars? Hebes Chasma is a depression just north of the enormous Valles Marineris canyon. Since the depression is unconnected to other surface features, it is unclear where the internal material went. Inside Hebes Chasma is Hebes Mensa, a 5 kilometer high mesa that appears to have undergone an unusual partial collapse -- a collapse that might be providing clues. The above image, taken by the robotic Mars Express spacecraft currently orbiting Mars, shows great details of the chasm and the unusual horseshoe shaped indentation in the central mesa. Material from the mesa appears to have flowed onto the floor of the chasm, while a possible dark layer appears to have pooled like ink on a downslope landing. A recent hypothesis holds that salty rock composes some lower layers in Hebes Chasma, with the salt dissolving in melted ice flows that drained through holes into an underground aquifer. http://www.esa.int/ http://www.esa.int/esaSC/SEMGQOXLDMD_people_0_iv.html http://www.esa.int/Services/Terms_and_conditions Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140812 #APOD

Scientists Find Fossil Menagerie in Huge Wyoming Hole

Scientists excavating an ancient Wyoming sinkhole containing a rare trove of fossils of Ice Age mammals have unearthed hundreds of bones of such prehistoric animals as American cheetahs.<p>The two-week dig by an international team of researchers, led by Des Moines University paleontologist Julie …

APOD: Auroras over Northern Canada (2014 Jul 14) Image Credit & Copyright: Kwon O Chul (TWAN) http://apod.nasa.gov/apod/ap140714.html Explanation: Gusting solar winds and blasts of charged particles from the Sun resulted in several rewarding nights last December for those anticipating auroras. The above image captured dramatic auroras stretching across a sky near the town of Yellowknife in northern Canada. The auroras were so bright that they not only inspired awe, but were easily visible on an image exposure of only 1.3 seconds. A video taken concurrently shows the dancing sky lights evolving in real time as tourists, many there just to see auroras, respond with cheers. The conical dwellings on the image right are teepees, while far in the background, near the image center, is the constellation of Orion. http://www.twanight.org/kwon Starship Asterisk* • APOD Discussion Page http://asterisk.apod.com/discuss_apod.php?date=140714 #APOD

A New View of Europa

Europa is like a spherical ice cube that has partially melted. In fact, if you shook this small moon of Jupiter, you might hear a sloshing sound.<p>That’s because a deep, global ocean lies beneath the moon’s frozen, criss-crossed crust – an ocean that might be as much as 100 kilometers deep. In fact, …

2014: Will It Be The Hottest Year Ever?

Last month was the warmest May in recorded history—and if El Nino gets its way in late 2014, this year could be the balmiest ever.<p>Last month was the warmest-ever May in the history of temperature records, leaving atmospheric scientists to wonder: Will 2014 go down as the hottest year ever?<p>“For 351 …

Scientists Keep A Careful Eye On The World Cup Ball

While many millions are enjoying the drama of the World Cup, a handful of scientists are keeping their eyes very closely on the ball.<p>The World Cup ball, known as Brazuca, has been the subject of intense and careful study, especially following the erratic performance of its predecessor in the 2010 …

Mercuriceratops: With bony wings on its skull, dinosaur looked fly

A team of paleontologists has discovered a horned dinosaur with some seriously weird headgear. Meet <i>Mercuriceratops</i>, a <i>Triceratops</i> relative whose bony frill sports wing-like protrusions on either side of its head.<p>The discovery, described in the journal Naturwissenschaften, highlights the diversity of …

How To Make A New Planet Home

Three simple steps for an intergalactic exit plan<p>The recipe for creating a habitable planet turns out to be surprisingly simple: Just add water—and atmospheric gases. Mars has both, relics from four billion years ago when the planet was warm and wet. “When it comes to Mars, and only Mars, the …

How much do oceans add to world’s oxygen?

Most of Earth’s oxygen comes from tiny ocean plants – called phytoplankton – that live near the water’s surface and drift with the …

Traces Of Some Of The 'Oldest Life' On Earth May Not Have Biological Origin After All

What were thought to be some of the oldest traces of life on Earth may not have been caused by life at all, new research suggests.<p>The fossils, tiny tubules etched into ancient rocks in South Africa, were initially thought to be formed by ancient bacteria boring through volcanic glass in the …

Mars volcano may have been site for life

Life on Mars could have flourished on the flanks of a giant Martian volcano in the relatively recent past<p>Geological landforms spotted on the flanks of a giant Martian volcano suggest that lakes could have existed there just 210m years ago. In geological terms, this is the recent past. On Earth at …

NASA Unveils the 'Global Selfie' We Made on Earth Day

NASA has taken the wraps off a 3.2-gigapixel "Global Selfie" that was built from 36,422 images shared on social media one month ago, for Earth Day.<p>The space agency says more than 50,000 pictures from 113 countries and regions around the world were posted on or around April 22, using the …

Social Media

DNA from skull links Ice Age girl to Native Americans alive today

The divers called her Naia, for "water nymph," because they discovered her teenage remains in a dark, underwater cave in Mexico's Yucatan Peninsula.<p>She had been hidden there for more than 12,000 years — along with the bones of dozens of extinct Ice Age beasts — and divers quickly spotted her skull …

Giant 17-million-year-old sperm discovered

Scientists have unearthed the world’s oldest sperm at a fossil site in Australia. The 17 million-year-old sperm belongs to an ancient species of tiny shrimp that lived in the Australian outback. "These are the oldest fossilised sperm ever found in the geological record," says Professor Mike Archer, …

New Images From The Deep Ocean

On May 1, NOAA scientists completed a three-week exploration of the ocean floor. Here's a glorious breakdown of what they saw.<p>We spent much of April glued to a livestream of the deep ocean, filmed from a remotely operated vehicle piloted by researchers aboard the Okeanos Explorer. The expedition …

17 Emerging Energy Technologies That Will Change The World

<i>Policy Horizons Canada worked with futurist and data visualizer Michell Zappa of Envisioning to produce a report called MetaScan 3: Emerging Technologies and accompanying infographics. We are reproducing the summary for emerging energy technologies.</i><p>We have included predictions based on consultation …

The world’s newest mineral is unlike anything we’ve ever seen before

Putnisite is completely unique and “unrelated to anything,” scientists say<p>It's purple and pretty and composed of cube-like crystals just 0.5 mm in size.<p>But what really makes putnisite, the world's newest mineral, truly unique is that nothing like it has ever been discovered before.<p>“Most minerals …

Find Vega, near Lyrid meteor radiant point

Finally! A meteor shower when the moon is (relatively) dark. Watch the mornings of April 21-23. We expect the peak morning to be April 22 for the …

Astronomy

Kepler 186f - First Earth-sized Planet Orbiting in Habitable Zone of Another Star

by Elisa Quintana, Research Scientist<p>For the past three decades, the SETI Institute has been participating in a number of scientific explorations to …

Stunning Blue-Green Mineral with Incredible Textured Interior

This beautiful mineral was recently sold for a whopping $5,000 by Rob Lavinsky of the Arkenstone. Measuring 9 x 7 x 6 centimeters, the stunning specimen is described as <i>Chalcedony on Chrysocolla stalactites (pocket)</i>. With a blue-green chalcedony-crusted exterior, an unusual pocket that opens to …

Earth becomes art in breathtaking satellite imagery

From above, the Vatnajokull Glacier is an eerie splash of blue against the florid hues of the surrounding landscape. This image of Iceland's Skaftafell National Park was taken by a satellite miles above the Earth. It's beautiful and also just one of the many geographical wonders showcased in the</i> …

Curiosity photo: Light seen on Mars is a camera artifact, not a real one.

<i>[UPDATE (Apr. 11, 2014 at 16:00 UTC): The following post contains some corrections that I have clarified in a follow-up article. Please read that</i> …

Mars over Northern Ireland coast

The planet Mars with the stars Spica, Arcturus and the Plough – or Big Dipper – over the northern coast of Northern Ireland. Mars is now at its …

thatscienceguy:

<b>The deepest cave in the world</b>, the Krubera-Voronya Cave, is the only known cave to exceed a depth of 2000 meters, and we still don’t know how deep it is!<p>In 2004 it was explored to a depth of 2080 meters which was as far as explorers could go as it was filled with water below, but then in 2012 a diver managed to extend the known depth of the cave to 2197 meters!

Search for Potential 'Planet X' Far From Over

The hunt for the hypothetical "Planet X" has been fruitless so far, but that doesn't mean astronomers are calling it off.<p>A new analysis of data …