Phys.org news
Phys.org / The mechanical ratchet: A new mechanism of cell division
Cell division is an essential process for all life on Earth, yet the exact mechanisms by which cells divide during early embryonic development have remained elusive—particularly for egg-laying species.
Phys.org / Swinging abyss: Oxygen isotope analysis shows less dynamic Antarctic ice sheet in Oligocene period
Oxygen isotopes data enable researchers to look far back into the geologic past and reconstruct the climate of the past. In doing so, they consider several factors such as ocean temperature and ice volume in polar regions. ...
Phys.org / Four baby planets show how super-Earths and sub-Neptunes form
Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune orbit most stars. Oddly, our sun lacks such a planet. That's been a source of frustration for planetary ...
Phys.org / Marine geoscientists link warming with ancient ocean 'salty blob'
Climate change has many culprits, from agriculture to transportation to energy production. Now, add another: the deep ocean salty blob.
Phys.org / Ushikuvirus: Newly discovered giant virus may offer clues to the origin of life
The origin of life on Earth becomes even more fascinating and complex as we peer into the mysterious world of viruses. Said to have existed since living cells first appeared, these microscopic entities differ greatly from ...
Phys.org / Supernova remnant video from NASA's Chandra is decades in making
A new video shows the evolution of Kepler's Supernova Remnant using data from NASA's Chandra X-ray Observatory captured over more than two and a half decades.
Phys.org / Lunar spacecraft exhaust could obscure clues to origins of life
Over half of the exhaust methane from lunar spacecraft could end up contaminating areas of the moon that might otherwise yield clues about the origins of Earthly life, according to a recent study. The pollution could unfold ...
Phys.org / Synchronizing ultrashort X-ray pulses for attosecond precision
Scientists at the Paul Scherrer Institute PSI have, for the first time, demonstrated a technique that synchronizes ultrashort X-ray pulses at the X-ray free-electron laser SwissFEL. This achievement opens new possibilities ...
Phys.org / New tool narrows the search for ideal metal organic frameworks
Princeton researchers have developed a new tool to speed the discovery of advanced materials known as metal organic frameworks (MOFs).
Phys.org / Creating psychedelic-like molecules by shining light on life's basic building blocks
UC Davis researchers have developed a new method that uses light to transform amino acids—the building blocks of proteins—into molecules that are similar in structure to psychedelics and mimic their interaction with the ...
Phys.org / Earth's early sponges were soft: Scientists close fossil record gap
Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic information from living sponges, as well as chemical signals from ancient rocks, suggest that sponges evolved ...
Phys.org / Small-scale rainforest clearing drives majority of carbon loss, study finds
Think of the destruction of Earth's rainforests and a familiar image may come to mind: fires or chainsaws tearing through enormous swaths of the Amazon, releasing masses of planet-warming carbon dioxide.
