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Phys.org / Airborne sensors map ammonia plumes in California's Imperial Valley

A recent study led by scientists at NASA's Jet Propulsion Laboratory in Southern California and the nonprofit Aerospace Corporation shows how high-resolution maps of ground-level ammonia plumes can be generated with airborne ...

Nov 20, 2025 in Earth
Medical Xpress / Daily pill helps people lose 10% of weight in 18 months, study finds

A daily pill that is cheaper and easier to take than currently available weight loss drugs helps people lose around a tenth of their body weight over nearly 18 months, a study said Thursday.

Nov 20, 2025 in Medications
Phys.org / Physicists demonstrate the constancy of the speed of light with unprecedented accuracy

In 1887, one of the most important experiments in the history of physics took place. American scientists Michelson and Morley failed to measure the speed of Earth by comparing the speed of light in the direction of Earth's ...

Nov 19, 2025 in Physics
Medical Xpress / Cancer cells have backup metabolic pathway to keep building DNA when blocked, study finds

Northwestern Medicine scientists have uncovered a surprising link between a tiny cellular engine and the way cancer cells build the DNA they need to proliferate, according to a new study published in Molecular Cell.

Nov 20, 2025 in Oncology & Cancer
Phys.org / NASA's Roman could bring new waves of information on galaxy's stars

A team of researchers has confirmed stars ring loud and clear in a "key" that will harmonize well with the science goals and capabilities of NASA's upcoming Nancy Grace Roman Space Telescope.

Nov 20, 2025 in Astronomy & Space
Phys.org / Smart toilets in Cambodia fall short due to improper use

A smart toilet design introduced in rural Cambodia was supposed to change lives—keeping families safe and protecting the environment. However, while households reported that they liked the new system, a crucial piece was ...

Nov 20, 2025 in Earth
Phys.org / From light to logic: First complete logic gate achieved in soft material using light alone

Researchers from McMaster University and the University of Pittsburgh have created the first functionally complete logic gate—a NAND gate (short for "NOT AND")—in a soft material using only beams of visible light. The ...

Nov 20, 2025 in Physics
Phys.org / Could the solution to the carbon problem be carbon itself?

Can we use carbon to help decarbonize the world and transform the energy and chemical industries? Yes, it seems, but there are some key challenges to overcome first.

Nov 20, 2025 in Chemistry
Phys.org / Deep imaging suggests isolated galaxy forms stars without signs of past mergers

Using the Two-meter Twin Telescope (TTT3), Spanish astronomers have conducted deep optical imaging of an isolated dwarf galaxy known as NGC 6789. Results of the new observations, presented November 10 on the arXiv preprint ...

Nov 18, 2025 in Astronomy & Space
Phys.org / Extinct rocket frog species identified from single 62-year-old museum specimen

Anyone walking through the Tarumã neighborhood in Curitiba (the capital of the state of Paraná, Brazil) today may find it difficult to imagine the area as it was in the past. Between the buildings, racetrack, and the city's ...

Nov 20, 2025 in Biology
Phys.org / Light-controlled embryos reveal power of mechanical forces in human development

Only two weeks after fertilization, the first sign of the formation of the three axes of the human body (head/tail, ventral/dorsal, and right/left) begins to appear. At this stage, known as gastrulation, a flat and featureless ...

Nov 20, 2025 in Biology
Phys.org / New fabric reflects 96% of sunlight to keep wearers cooler in extreme heat

As global temperatures rise and heat waves intensify, a new textile innovation co-developed by University of South Australia scientists promises to keep people cooler, drier, and more comfortable in extreme heat.

Nov 20, 2025 in Nanotechnology