Sex roles in birds describe sex differences in courtship, mate competition, social pair-bonds, and parental care. Different explanations have been put forward to explain these differences but none ar… [+4787 chars]
An international team of researchers led by DESY scientists has demonstrated for the first time at the FLASHForward experiment that, in principle, it is possible to operate plasma accelerators at the… [+5955 chars]
Mollusk shells at 4,000-year-old Native American shell ring villages indicate that environmental change may have driven the formation and abandonment of these coastal communities, according to a stud… [+3891 chars]
On Feb. 4, 2022, SpaceX launched 49 satellites as part of Elon Musks Starlink internet project, most of which burned up in the atmosphere days later. The cause of this more than US$50 million failure… [+7731 chars]
When two neutron stars collide, it creates a kilonova. The event causes both gravitational waves and emissions of electromagnetic energy. In 2017 the LIGO-Virgo gravitational-wave observatories detec… [+9028 chars]
An underground mountain-sized chunk of rock may be affecting paths of large earthquakes in southern Japan. The dense igneous rock, known as the Kumano pluton, is lurking about 3.1 miles (5 kilometer… [+7473 chars]
The International Space Station (ISS) has emerged from the month of February 2022 on shakier ground than when it entered the month from a geopolitical standpoint based on events taking place 425 kilo… [+8250 chars]
In 2020, a team of astronomers with the European Southern Observatory (ESO) discovered the closest black hole to Earth in the HR 6819 system, just 1,000 light-years away, only to have other scien… [+3046 chars]
The moon is about to be hit by three tons of space junk, a punch that will carve out a crater that could fit several huge lorries. The leftover rocket will smash into the far side of the moon at 5,8… [+3076 chars]
Researchers at Yale and Caltech have a bold new theory to explain how Earth transformed itself from a fiery, carbon-clouded ball of rocks into a planet capable of sustaining life. The theory covers … [+3625 chars]
Sex roles in birds describe sex differences in courtship, mate competition, social pair-bonds, and parental care. Different explanations have been put forward to explain these differences but none ar… [+4787 chars]
Noah rode out his flood in an ark. Winnie-the-Pooh had an upside-down umbrella. Fire ants (Solenopsis invicta), meanwhile, form floating rafts made up of thousands or even hundreds of thousands of in… [+5291 chars]
