US and World News

Russia: we’ll leave International Space Station and build our own - The Guardian
‘If you want to do well, do it yourself’ says head of space agency as relations with US strained by earthly disputes

Tiny newfound 'Unicorn' is closest known black hole to Earth -
'The Unicorn' lies a mere 1,500 light-years from us and is just three times more massive than the sun.

Mars Express and the case of the large, mysterious Martian volcano cloud - -
Throughout the southern Martian hemisphere’s spring and summer seasons, a large, expansive cloud emerges daily…

Record-breaking flare erupts from neighboring star - CNN
A giant flare has erupted from nearby star Proxima Centauri that is 100 times more powerful than any flare our sun has ever released. The flare ranks as one of the most violent seen anywhere in the Milky Way galaxy.

NASA's Perseverance Mars Rover Extracts First Oxygen from Red Planet - NASA
The growing list of “firsts” for Perseverance, NASA’s newest six-wheeled robot on the Martian surface, includes converting some of the Red Planet’s thin, carbon dioxide-rich atmosphere into oxygen.

New data is evidence of process that powers exploding stars - Ars Technica
We're still trying to understand the mechanics that allow a star to self-destruct.

New Horizons is Now 50 Astronomical Units Away From the Sun - Universe Today
As the New Horizons spacecraft hurtles out towards interstellar space, it has now reached an historical milestone. On April 17, 2021, New Horizons passed 50 astronomical units, or 50 times Earth’s distance from the Sun. It is just the 5th spacecraft to reach …

Scientists capture first ever image of an electron's orbit within an exciton -
In a world first, researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have captured an image showing the internal orbits, or spatial distribution, of particles in an exciton—a goal that had eluded scientists for almost …

SpaceX Crew-2 flight delayed to Friday due to weather - Fox News
NASA announced on Wednesday that its highly-anticipated SpaceX Crew-2 launch to the International Space Station is delayed.

New Biomechanical Model Shows Tyrannosaurus rex Walked Surprisingly Slowly - SciTechDaily
Humans and animals have a preferred walking speed. This is, in part, influenced by the amount of energy required: they prefer to walk at the speed at which they use the lowest possible amount of energy. One of the ways to achieve this is using something calle…

The UK's space agency is hunting for 'moon trees' grown from seeds that went on the Apollo 14 lunar mission - CNN
Fifty years ago, NASA's Apollo 14 completed the third crewed mission to the moon. On board the spacecraft as it landed in the Pacific Ocean on February 9, 1971, was some unusual cargo -- about 500 tree seeds.

Incredible Fossil Skeleton Reveals an Ancient Human Relative Who Swung Through Trees - Gizmodo
The fossilized shoulder joint of an early hominin named “Little Foot” suggests the upright-walking species was also proficient at swinging through trees, at a skill long gone among modern humans.

Overshooting tipping point thresholds in a changing climate -
Ongoing global warming is likely to cause tipping point thresholds to be passed, but an abrupt system change can still be avoided if the warming is reversed quickly relative to the timescale of the tipping element.

Astronomers Release New All-Sky Map of Milky Way's Outer Reaches - NASA
The highlight of the new chart is a wake of stars, stirred up by a small galaxy set to collide with the Milky Way. The map could also offer a new test of dark matter theories.

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