US and World News

Living robots built using frog cells: Tiny 'xenobots' assembled from cells promise advances from drug delivery to toxic waste clean-up - Science Daily
Scientists repurposed living frog cells -- and assembled them into entirely new life-forms. These tiny 'xenobots' can move toward a target and heal themselves after being cut. These novel living machines are neither a traditional robot nor a known species of …

The Secret That Helps Some Trees Live More Than 1,000 Years - The New York Times
By comparing very old and young ginkgos in China, scientists found an explanation for their longevity.

Oldest material on Earth discovered - BBC News
Scientists analysing a meteorite have discovered the oldest material known to exist on Earth.

Researchers solve a scientific mystery about evaporation -
Evaporation can explain why water levels drop in a full swimming pool, but it also plays an important role in industrial processes ranging from cooling electronics to power generation. Much of the global electricity supply is generated by steam plants, which …

Atomic tuning on cobalt enables an eightfold increase of hydrogen peroxide production -
IBS scientists and their colleagues have recently report an ultimate electrocatalyst that addresses all of the issues that trouble H2O2 production. This new catalyst comprising the optimal Co-N4 molecules incorporated in nitrogen-doped graphene, Co1-NG(O), ex…

Iodine may slow ozone layer recovery -
A new paper quantifying small levels of iodine in Earth's stratosphere could help explain why some of the planet's protective ozone layer isn't healing as fast as expected.

How Insects Cope When Blood Rushes to Their Heads - The New York Times
Grasshoppers have to deal with blood pressure issues when they are upside down.

Oceans are warming at the same rate as if five Hiroshima bombs were dropped in every second - CNN
The world's oceans are now heating at the same rate as if five Hiroshima atomic bombs were dropped into the water every second, scientists have said.

NASA's Wallops Flight Facility Gears Up for a Busy and Historic Early 2020 -
For the first half of 2020, Antares will launch the Cygnus NG-13 mission to the…

The space military industrial complex profits off US failure - Quartz
NASA is paying billions to reinforce a system of self-sabotage.

NASA's Mars 2020 Rover Closer to Getting Its Name - Jet Propulsion Laboratory
155 students from across the U.S. have been chosen as semifinalists in NASA's essay contest to name the Mars 2020 rover. and see it launch from Cape Canaveral this July.

Crew Dragon faces its last big test before human spaceflight on Saturday - Ars Technica
One launch emergency. Four parachutes. Eight SuperDracos.

New Australia fire images snapped from space show immense ash cloud - CNET
ISS astronauts have never "seen fires at such terrifying scale."

The Milky Way Ate Another Galaxy, And This Star Can Tell Us When It Happened - ScienceAlert
Astronomers recently discovered that a long time ago, a collision with a satellite galaxy did something interesting to the Milky Way, puffing up its disc and seeding its halo with stars. Now, we've established a more precise time frame for that eve

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