Space Exploration

NASA delays Mars copter flight for tech check

NASA has delayed by at least several days the first flight of its mini-helicopter on Mars after a possible tech issue emerged while testing its rotors, the US space agency said Saturday.

Archaeology

Famed Egyptian archaeologist reveals details of ancient city

Egypt's best-known archaeologist on Saturday revealed further details on a Pharaonic city recently found in the southern province of Luxor.

NASA's Mars Helicopter to make first flight attempt Sunday

NASA's Ingenuity Mars Helicopter is two days away from making humanity's first attempt at powered, controlled flight of an aircraft on another planet. If all proceeds as planned, the 4-pound (1.8-kg) rotorcraft is expected ...

Abrupt ice age climate changes behaved like cascading dominoes

Throughout the last ice age, the climate changed repeatedly and rapidly during so-called Dansgaard-Oeschger events, where Greenland temperatures rose between 5 and 16 degrees Celsius in decades. When certain parts of the ...

Better solutions for making hydrogen may lie just at the surface

A clean energy future propelled by hydrogen fuel depends on figuring out how to reliably and efficiently split water. That's because, even though hydrogen is abundant, it must be derived from another substance that contains ...

Treating sleep apnea may reduce dementia risk

A new study finds older adults who received positive airway pressure therapy prescribed for obstructive sleep apnea may be less likely to develop Alzheimer's disease and other kinds of dementia.

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Medical Xpress

Diseases, Conditions, Syndromes
Mumbai in lockdown as Indian vaccines run short
Diseases, Conditions, Syndromes
Interleukin-33 involved in immunity to SARS-CoV-2

Tech Xplore

Exploration of ocean currents beneath the 'Doomsday Glacier'

For the first time, researchers have been able to obtain data from underneath Thwaites Glacier, also known as the "Doomsday Glacier." They find that the supply of warm water to the glacier is larger than previously thought, ...

Different neutron energies enhance asteroid deflection

A research collaboration between Lawrence Livermore National Laboratory (LLNL) and the Air Force Institute of Technology (AFIT) investigates how the neutron energy output from a nuclear device detonation can affect the deflection ...

Biodiversity 'hot spots' devastated in warming world

Unless nations dramatically improve on carbon cutting pledges made under the 2015 Paris climate treaty, the planet's richest concentrations of animal and plant life will be irreversibly ravaged by global warming, scientists ...

Two dead whales wash up on Bangladesh beach

Two dead whales have washed up on the same stretch of Bangladesh coastline in two days, officials said Saturday, raising suggestions that they were killed by sea pollution.

Hubble takes a spiral snapshot

The luminous heart of the galaxy M61 dominates this image, framed by its winding spiral arms threaded with dark tendrils of dust. As well as the usual bright bands of stars, the spiral arms of M61 are studded with ruby-red ...

Satellites monitor Mount Etna's unpredictable behavior

Italy's Mount Etna, Europe's most active volcano, has recently been on explosive form, with 17 eruptions in less than three months. Instruments onboard three different satellites orbiting Earth have acquired imagery of the ...