US and World News

Human Sperm Swim Like 'Playful Otters,' New Study Finds - HuffPost
Sperm cells are wobblier and wonkier than we ever imagined.

How to watch SpaceX bring NASA astronauts back to Earth this weekend - CNET
Bob Behnken and Doug Hurley made history getting to the space station aboard a Crew Dragon capsule. Weather permitting, they're coming home soon.

NASA Mars 2020 Perseverance Cruising at 24,600 MPH on Its 300 Million Mile Journey to Mars - SciTechDaily
The team controlling NASA’s Mars 2020 Perseverance rover has received telemetry (detailed spacecraft data) down from the spacecraft and has also been able to send commands up to the spacecraft, according to Matt Wallace, the mission’s deputy project manager. …

Take a tusk, drill holes, weave a rope – and change the course of history - The Guardian
Scientists have discovered the tool our stone-age ancestors used to manufacture rope – a milestone in technological development

Neanderthal Genetics May Explain Your Low Tolerance for Pain - Yahoo News
Turns out your eldest ancestors sexual antics might be the reason you’re especially sensitive to painful stimuli.

To save the hemlock, scientists turn to genetics and natural predators - The Washington Post
A tiny aphid-like insect known as hemlock woolly adelgid has been devastating the trees since the 1970s.

Anglerfish Physically Fuse to Their Mates, And We Finally Know How That's Possible - ScienceAlert
Dating is hard enough when you have ample choice, but imagine drifting through a dark nothingness, half-formed and hopeless, starved for nutrients and love.

Best Place on Earth to See Stars – Where They Can Finally Be Seen Without Their Twinkle - SciTechDaily
Stars viewed from a place called Dome A in Antarctica can finally be seen without their twinkle – which means in much greater detail. Have you ever wondered why stars twinkle? It’s because turbulence in the Earth’s atmosphere makes light emitted from the star…

How Woody Vines Do the Twist - The New York Times
Slowly, scientists are learning how lianas quickly climb.

Scientists discover new class of semiconducting entropy-stabilized materials -
Semiconductors are important materials in numerous functional applications such as digital and analog electronics, solar cells, LEDs, and lasers. Semiconducting alloys are particularly useful for these applications since their properties can be engineered by …

Surprisingly Recent Galaxy Discovered Using Machine Learning – May Be the Last Generation Galaxy in the Long Cosmic History - SciTechDaily
Breaking the lowest oxygen abundance record. New results achieved by combining big data captured by the Subaru Telescope and the power of machine learning have discovered a galaxy with an extremely low oxygen abundance of 1.6% solar abundance, breaking the pr…

That Weird, Long Cloud on Mars Has Made a Dramatic Return - ScienceAlert
Every good story deserves a sequel – and the strange white cloud spotted above an extinct Martian volcano back in 2018 just got one, because the stunning fog trail has made another appearance.

Ariane 5 scrubs launch of Mission Extension Vehicle, two communications satellites to orbit -
An Ariane 5 rocket, operated by European Launch Service provider ArianeSpace, scrubbed ahead of its…

Two Arctic ice caps have vanished as NASA reveals shock satellite images of global warming - New York Post
Satellite analysis has revealed two ice caps in the Arctic have completely disappeared. They’re victims of human-caused warming, according to the National Snow and Ice Data Center. Mark Serre…

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