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Stony-iron meteor caused August impact flash at Jupiter

Analysis of a bright flash in Jupiter's atmosphere observed by an amateur astronomer in August 2019 has revealed that the likely cause was a small asteroid with a density typical of stony-iron meteors. The impact is estimated ...

Dusty vacuums may be astronauts' biggest health risk

Human lungs have proven to be remarkably adaptable to life in space, but dust may their biggest challenge, even greater than the lack of gravity, according to a leading aerospace medicine expert, writing in the Medical Journal ...

NASA funds CubeSat Pathfinder mission to unique lunar orbit

The pathfinder mission represents a rapid lunar flight demonstration and could launch as early as December 2020. CAPSTONE will demonstrate how to enter into and operate in this orbit as well as test a new navigation capability. ...

Image: North polar dunes on Mars

This captivating image was taken in the north polar region of Mars by the ESA/Roscosmos ExoMars Trace Gas Orbiter's CaSSIS camera.

NASA's Mars 2020 comes full circle

Engineers took NASA's Mars 2020 for a spin on Aug. 29, 2019. The 2,300-pound (1,040-kilogram) Martian vehicle was rotated clockwise and counterclockwise at about 1 revolution per minute on what is called a spin table in the ...

Newly discovered comet is likely interstellar visitor

A newly discovered comet has excited the astronomical community this week because it appears to have originated from outside the solar system. The object—designated C/2019 Q4 (Borisov) - was discovered on Aug. 30, 2019, ...

First Earth observation satellite with AI ready for launch

A few months from now will see the launch of the first European satellite to demonstrate how onboard artificial intelligence can improve the efficiency of sending Earth observation data back to Earth. Dubbed ɸ-Sat, or PhiSat, ...

A new journey into Earth for space exploration

Six astronauts, five space agencies and a fresh start into underground worlds to help prepare for living on other planets. ESA's latest training adventure will equip an international crew with skills to explore uncharted ...

Image: Avalanche season on Mars

Every spring, the sun shines on the side of the stack of layers at the North Pole of Mars known as the north polar layered deposits. The warmth destabilizes the ice and blocks break loose.

Fulfilling a dream: To study Earth from space

During her childhood in northern Maine, Jessica Meir often stared at the night sky and wondered what it would be like to observe earth from space.

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