Tag Archives: earth

Ancient Magnetosphere

Solar storms strip a planet’s atmosphere over time, and only a strong magnetosphere would be able to provide maximum protection. Lunar samples gathered by NASA’s Apollo missions recently revealed that the Moon had its own global magnetosphere, lasting from about 4.25 to 2.5 billion years ago. According to new research, …

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Earth Asteroid Bennu

NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith Explorer) mission to the near-Earth asteroid Bennu is designed to return a carbon-rich sample of the asteroid to Earth. This 500-m-diameter body was chosen as the mission target due to its spectral similarity to primitive and organic-rich carbonaceous chondrite meteorites. In …

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NASA Satellite Crashes

  During the height of the space race in the 1960s, the US launched a series of satellites designed to study the planet. The six Orbiting Geophysical Observatory (OGO) spacecraft improved our understanding of Earth’s magnetic field, shutting down a few years later. However, one of those forlorn satellites known …

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Origin Of Water On Earth

  If you remember even basic elementary school geography, you know that Earth’s surface is mostly water. Scientists have disagreed about how all that water ended up on Earth. Was it all here when the planet formed, or was Earth a dry husk until asteroids and comets delivered water? A …

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Chondrite Like Asteroids

A type of meteorite called an enstatite chondrite has similar isotopic composition to terrestrial rocks and thus may be representative of the material that formed Earth. A new study published in the journal Science shows that these meteorites contain sufficient hydrogen to have delivered to Earth at least three times …

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Earth’s Inner Core

The inner core of our planet is between 1 and 1.3 billion years old, according to new research led by the University of Texas at Austin and Carnegie Institution for Science. Earth’s internal structure: dense solid metallic core, viscous metallic outer core, mantle and silicate based crust. Image credit: NASA. …

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SpaceX Dragon Crew

NASA Will Bring SpaceX Dragon Crew Back to Earth August 2 NASA astronauts Bob Behnken and Doug Hurley made history in May when they rode the SpaceX Falcon 9 into space and docked the Dragon capsule at the International Space Station (ISS). The pair have been on the station all …

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Deepest Oceanic Trenches

Scientists Find Anthropogenic Mercury in Earth’s Deepest Oceanic Trenches Two teams of marine biologists have found methylmercury, a potent toxin that bioaccumulates in marine food webs, in sediments and endemic fauna from Mariana, Yap and Kermadec trenches in the Pacific Ocean. A snailfish (bottom left) and small amphipods (center) at …

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Martian Surface

Curiosity Spots Earth and Venus from Curiosity Spots Earth and Venus from The Mast Camera (Mastcam) onboard NASA’s Mars rover Curiosity has captured new images of Earth and Venus as seen from the surface of the Red Planet. Two images of the night sky were combined to show Earth and …

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Evidence of Supernova

Astronomers Find Evidence of Supernova Just 600 Light-Years from Earth Astronomers have found many awe-inspiring objects in the cosmos, but a pair of astronomers 20 years ago found something just plain confusing. They spotted a straight line of ionized gas in the direction of Ursa Major, which was never really …

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