Astronomers identify 2 planets as possible water worlds Using data from the Kepler, Hubble and Spitzer space telescopes, astronomers have identified two exoplanets orbiting a red-dwarf star 218 light-years away suspected of being made mostly of water. “It is the first time we observe planets that can be confidently identified as water worlds, a type […]
The biochemical process by which cyanobacteria acquire nutrients from rocks in Chile’s Atacama Desert has inspired engineers to think of new ways microbes might help humans build colonies on the moon and Mars. Researchers used high-resolution electron microscopy and advanced spectroscopic imaging techniques to gain a precise understanding of how microorganisms modify both naturally occurring […]
Radioactive meteorites could have brought life to Earth The gamma rays produced by carbonaceous chondrites, radioactive meteorites that contain water and organic compounds, could have been sufficient to spark the chemical reactions that created amino acids, the building blocks of life on Earth, researchers have concluded. The study is based on observations from bombarding chemicals […]
The El Niño Southern Oscillation (ENSO) is one of the most important modes of climate variability worldwide, with large impacts on the weather conditions in many regions, and thus on agriculture and economy. It is related to changes in the sea surface temperatures in the Tropical Pacific Ocean. Periods with higher temperatures cause the so-called […]
Flash thought to result from black hole swallowing a star Two separate teams of scientists, who have published papers in Nature and Nature Astronomy, have concluded that a flash of light that appeared in February was the astrophysical jet that erupted from a massive black hole as it swallowed a star. “From the data we […]
For the first time, scientists have entangled atoms for use as networked quantum sensors, specifically, atomic clocks and accelerometers. The research team’s experimental setup yielded ultraprecise measurements of time and acceleration. Compared to a similar setup that does not draw on quantum entanglement, their time measurements were 3.5 times more precise, and acceleration measurements exhibited […]
Best-explored planet outside our solar system WASP-39b, a boiling Saturn-like planet 700 light-years away from the sun has become the best-explored planet outside our solar system, as the James Webb Space Telescope’s observations have yielded a trove of information about the exoplanet’s atmosphere. Laura Kreidberg, director of the Max Planck Institute for Astronomy, said the […]
When polar seas freeze and ice forms, it is not only due to cold air chilling the surface of the water. Even more important is that warm water is prevented from rising to the surface from the depths of the ocean, due to the much lower salinity of the surface water. Sea ice forms in […]
Meteorites may have brought water to Earth Analysis of fragments of a meteorite that landed in the driveway of a British home in 2021 revels the space debris originated in the outer solar system and held water chemically similar to the water found on Earth. The meteorite came from an asteroid in Jupiter’s orbit some […]
Bringing together concepts from electrical engineering and bioengineering tools, scientists have produced genetic “devices” designed to perform neuromorphic computations like artificial neural circuits in bacterial cells. The genetic material was inserted into bacterial cells in the form of a plasmid: a relatively short DNA molecule that remains separate from the bacteria’s “natural” genome. Plasmids also […]