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Tag: Earth

New images of 'hippo' asteroid as it zips past Earth

New images of 'hippo' asteroid as it zips past Earth

Technology
Earth is not on a collision course with a massive asteroid, detailed pictures of the nearby flying object have revealed. Astronomers have been in awe as it approached the planet and provided the opportunity to obtain radar images of the asteroid's surface and shape.NASA said the pictures would help observers understand the object's orbit.The asteroid, first discovered in 2003, is classified as "potentially hazardous" due to its size and close approaches to Earth's orbit.However, the latest radar measurements confirm it does not pose a future impact threat to Earth. 1:27 ...
Soyuz capsule returns to Earth from International Space Station

Soyuz capsule returns to Earth from International Space Station

Science
Dec. 20 (UPI) -- A Soyuz capsule with three crewmembers returned to Earth on Thursday after a six-month stay in the International Space Station. NASA astronaut Serena Auñón-Chancellor, German astronaut Alexander Gerst of the European Space Agency and Russian cosmonaut Sergey Prokopyev touched down safely in snowy Kazakhstan at 12:02 a.m. EST, according to NASA. They left the space station at 8:40 p.m. They spent 197 days in space, circling the globe 3,152 times and covering 83.3 million miles. The temperature was in single digits upon their landing in the remote area. "The Soyuz MS-09 stuck the landing on the eve of the 50th anniversary of humankind's first voyage to the moon," NASA TV commentator Rob Navias said during a live webcast of the landing as reported by Space.com....
Climate change also wiped out life on Earth 252 million years ago

Climate change also wiped out life on Earth 252 million years ago

Science
Dec. 13 (UPI) -- Some 252 million years ago, nearly all live on Earth vanished. The fossil record suggests some 96 percent of all marine life disappeared, and scientists suspect the magnitude of losses on land was similar. But until now, scientists weren't sure what exactly caused the massive Permian Period extinction, an event known as the Great Dying. Researchers knew a series of volcanic eruptions set off a devastating chain of events, including deadly and disruptive climatic and environmental changes, but scientists couldn't agree on a smoking gun. Was it the sudden rise in ocean acidity? Did sulphur and other toxic metals poison the seas? Or did sudden rises in ocean temperatures wipe out almost all marine life? New models designed by scientists at the University of Washington and S...
Nasa's IceSat space laser makes height maps of Earth

Nasa's IceSat space laser makes height maps of Earth

Science
One of the most powerful Earth observation tools ever put in orbit is now gathering data about the planet.IceSat-2 was launched just under three months ago to measure the shape of the ice sheets to a precision of 2cm.But the Nasa spacecraft's laser instrument is also now returning a whole raft of other information.It is mapping the height of the land, of rivers, lakes, forests; and in a remarkable demonstration of capability - even the depth of the seafloor."We can see down to 30m in really clear waters," said Lori Magruder, the science team leader on the IceSat mission. "We saw one IceSat track just recently that covers 300km in the Caribbean and you see the ocean floor the entire way," the University of Texas researcher told BB...
DNA project to decode 'all complex life' on Earth

DNA project to decode 'all complex life' on Earth

Science
A mission to sequence the genome of every known animal, plant, fungus and protozoan - a group of single-celled organisms - is underway. The Earth BioGenome Project (EBP) has been described as a "moonshot for biology".A key aim is to use the information in efforts to conserve threatened species. Scientists say clues about how species adapt to environmental change could be hidden in their DNA code. As part of the project, the Wellcome Sanger Institute, which played a major part in the human genome project, has committed to sequencing the genomes of all 66,000 UK species. Dr Jim Smith, director of science at the Wellcome Trust described the mission as timely, adding that it was "incumbent upon human beings to raise awareness of biodiversity". ...