• Monday, July 28, 2014

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Earth

Nasa aims to land on asteroids

Nasa aims to land on asteroids

Nasa's mission to land on an asteroid could help save the Earth, the space agency has revealed. The mission is expected to test an 'enhanced gravity tractor' that could be used to push away an asteroid on a collision course with Earth. The technique would use a robotic probe to fly alongside a space...

Mini-planet found in solar system's backyard

Mini-planet found in solar system's backyard

Astronomers have found a dwarf planet far beyond the orbit of Pluto and can only guess how it got there. The diminutive world, provisionally called "2012 VP 113" by the international Minor Planet Center, is estimated to be about 280 miles (450 km) in diameter, less than half the size of a neighboring dwarf...

Earth rocked by double space impact

Earth rocked by double space impact

We've all seen the films where an asteroid hurtles towards our planet, threatening civilisation. What's less well known is that menacing space rocks sometimes come in twos. Researchers have outlined some of the best evidence yet for a double space impact, where an asteroid and its moon apparently struck Earth in tandem. Using tiny, plankton-like fossils,...

Greenland ice sheets melting faster: Study

Greenland ice sheets melting faster: Study

A new research study is showing that Greenland’s ice sheets are melting at a much higher rate than what was once believed, reports Guardian Liberty Voice on Sunday.   This means there is a faster increase in the level of water of Earth’s sea levels. While scientists were aware of climate change causing the ice...

Wrinkled Mercury's shrinking history

Wrinkled Mercury's shrinking history

The planet Mercury is about 7km smaller today than when its crust first solidified over four billion years ago. The innermost world has shrunk as it has cooled over time, its surface cracking and wrinkling in the process. Scientists first recognised the phenomenon when the Mariner 10 probe whizzed by the planet in the mid-1970s. But...

Hints of deep Earth's blue rocks

Hints of deep Earth's blue rocks

Minerals preserved in diamond have revealed hints of the bright blue rocks that exist deep within the Earth. They also provide the first direct evidence that there may be as much water trapped in those rocks as there is in all the oceans. The diamond, from central-west Brazil, contains minerals that formed as deep as...

'Potentially hazardous' asteroid to fly close to Earth

'Potentially hazardous' asteroid to fly close to Earth

A "potentially hazardous" asteroid the size of three football fields will come uncomfortably close to Earth early on Tuesday. The space rock, known as 2000 EM26, poses no threat and will pass the Earth at just under nine times the distance to the moon, The Guardian reports. But it is defined as a potentially hazardous...

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