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Tag Archives: earth

NASA Declares ‘Victory’ With Critical ISS Spacewalk

NASA Declares ‘Victory’ With Critical ISS Spacewalk

NASA Two US astronauts successfully embarked Tuesday on what NASA described as a "critical" spacewalk to repair a failed piece of equipment that helps power the International Space Station. "We have declared victory," NASA commentator Rob Navias said about two hours into the emergency spacewalk by space station commander Peggy Whitson, 57, and flight engineer Jack Fischer, 43. The reason …

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Fossil Find Suggests Dinosaurs Crossed North America Before Extinction

Fossil Find Suggests Dinosaurs Crossed North America Before Extinction

Tooth of a horned dinosaur from Mississippi. | A single dinosaur tooth is helping paleontologists better understand what North America looked like right before non-avian dinosaurs went extinct. Prior to 68–66 million years ago, hefty horned dinosaurs migrated from western North America to the east. One such animal died sometime after the lengthy journey, perhaps falling victim to a bloodthirsty …

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Colliding Dead Stars May Explain the Milky Way’s Mysterious Antimatter

Colliding Dead Stars May Explain the Milky Way's Mysterious Antimatter

An artist’s impression of two white dwarf stars destined to merge and create a Type Ia supernova. | The majority of antimatter that pervades the Milky Way may come from clashing remnants of dead stars, a new study finds. The work may solve a 40-year-old astrophysics mystery, the study’s researchers said. For every particle of normal matter, there is an …

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Orphan Planet’s Huge Disk Shows That Planets Are More Like Stars Than We Know

Orphan Planet's Huge Disk Shows That Planets Are More Like Stars Than We Know

An artist’s impression of the gas and dust disk around the planet-like object OTS44. First radio observations indicate that OTS44 has formed in the same way as a young star. | The lonely life of OTS44, an orphan planet floating in space without a parent star, has taken a mysterious turn. New observations with the Atacama Large Millimeter/submillimeter Array (ALMA) …

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Weather again delays launch of Rocket Lab’s Electron rocket

Weather again delays launch of Rocket Lab’s Electron rocket

Rocket Lab’s launch site on Mahia Peninsula in New Zealand. Credit: Rocket Lab Weather again delayed the first launch of Rocket Lab’s Electron rocket. Wind conditions at the company’s New Zealand launch site subsided to allow the rocket to roll out to the launch pad, but the company said concerns about “triboelectrification,” or static electric charges as the rocket passed …

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Ford looks to the IoT for its next CEO

Ford looks to the IoT for its next CEO

BI Intelligence See Also AT&T has Verizon in its sights with new IoT network Google’s new cloud service shows increasing demand for the IoT There will be 24 billion IoT devices installed on Earth by 2020 This story was delivered to BI Intelligence IoT Briefing subscribers. To learn more and subscribe, please click here . Ford Motors is replacing ousted …

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Drivers walk away unharmed as epic rally-car jump turns into an epic fail

Drivers walk away unharmed as epic rally-car jump turns into an epic fail

This shows the risks racing drivers take, and how quickly things can go south during a race. Among the many forms of motor sports, rallying is one of the most dramatic to watch. Because not only do cars travel at high speeds across the ground, they occasionally leave it. Epic jumps are a big part of rally driving. But they …

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After 9 months in space, mouse sperm yield healthy mice

After 9 months in space, mouse sperm yield healthy mice

Credit: martha sexton/public domain After nine months in space, mouse sperm has yielded healthy mice, Japanese scientists reported Monday. The freeze-dried sperm samples were launched in 2013 to the International Space Station and returned to Earth in 2014. The intense radiation of space caused slight DNA damage to the sperm. Yet, following in vitro fertilization on the ground, healthy offspring …

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Study shows how radioactive decay could support extraterrestrial life

Study shows how radioactive decay could support extraterrestrial life

A University of Texas at San Antonio (UTSA) and Southwest Research Institute (SwRI) team modeled a natural water-cracking process called radiolysis. They applied the model to the icy bodies around our solar system to show how radiation … "The physical and chemical processes that follow radiolysis release molecular hydrogen (H2), which is a molecule of astrobiological interest," said Alexis Bouquet, …

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Weathering of rocks a poor regulator of global temperatures

Weathering of rocks a poor regulator of global temperatures

A river runs through a valley in the Himalayan mountains. New results show the rate for chemical weathering of rocks is not as sensitive to global temperatures as geologists thought. Credit: Pixabay A new University of Washington study shows that the textbook understanding of global chemical weathering—in which rocks are dissolved, washed down rivers and eventually end up on the …

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