Phys.org news

Phys.org / China lands on Mars in major advance for its space ambitions

China landed a spacecraft on Mars for the first time on Saturday, a technically challenging feat more difficult than a moon landing, in the latest step forward for its ambitious goals in space.

May 15, 2021 in Astronomy & Space
Phys.org / Few realistic scenarios left to limit global warming to 1.5°C

Of the over 400 climate scenarios assessed in the 1.5°C report by the Intergovernmental Panel on Climate Change (IPCC), only around 50 scenarios avoid significantly overshooting 1.5°C. Of those only around 20 make realistic ...

May 14, 2021 in Earth
Phys.org / Observations show marine clouds amplify warming

A new analysis of satellite cloud observations finds that global warming causes low-level clouds over the oceans to decrease, leading to further warming. The work, led by researchers at Lawrence Livermore National Laboratory ...

May 14, 2021 in Earth
Phys.org / Mammals can breathe through anus in emergencies

Rodents and pigs share with certain aquatic organisms the ability to use their intestines for respiration, finds a study publishing May 14th in the journal Med. The researchers demonstrated that the delivery of oxygen gas ...

May 14, 2021 in Biology
Phys.org / Politically polarized brains share an intolerance of uncertainty

Since the 1950s, political scientists have theorized that political polarization—increased numbers of "political partisans" who view the world with an ideological bias—is associated with an inability to tolerate uncertainty ...

May 14, 2021 in Other Sciences
Phys.org / Charting the expansion history of the universe with supernovae

An international research team analyzed a database of more than 1000 supernova explosions and found that models for the expansion of the Universe best match the data when a new time dependent variation is introduced. If proven ...

May 14, 2021 in Astronomy & Space
Phys.org / Supercomputer simulations unlock an old space weather puzzle

Scientists have long questioned why the bursts of hot gas from the sun do not cool down as fast as expected, and have now used a supercomputer to find out.

May 14, 2021 in Astronomy & Space
Phys.org / Extraterrestrial radioactive isotope found in seabed has implications for Earth's origins

The first-ever discovery of an extraterrestrial radioactive isotope on Earth has scientists rethinking the origins of the elements on our planet.

May 14, 2021 in Astronomy & Space
Phys.org / Is the past (and future) there when nobody looks?

In 1961, the Nobel prize winning theoretical physicist Eugene Wigner proposed what is now known as the 'Wigner's friend' thought experiment as an extension of the notorious Schroedinger's cat experiment. In the latter, a ...

May 14, 2021 in Physics
Phys.org / Physicists predict neutron stars may be bigger than previously imagined

When a massive star dies, first there is a supernova explosion. Then, what's left over becomes either a black hole or a neutron star.

May 14, 2021 in Astronomy & Space
Phys.org / Earth's oldest minerals date onset of plate tectonics to 3.6 billion years ago

Scientists led by Michael Ackerson, a research geologist at the Smithsonian's National Museum of Natural History, provide new evidence that modern plate tectonics, a defining feature of Earth and its unique ability to support ...

May 14, 2021 in Earth
Phys.org / New research shows: Antoni van Leeuwenhoek led rivals astray

A microscope used by Antoni van Leeuwenhoek to conduct pioneering research contains a surprisingly ordinary lens, as new research by Rijksmuseum Boerhaave Leiden and TU Delft shows. It is a remarkable finding, because Van ...

May 14, 2021 in Biology