Modern humans have been interbreeding with Neanderthals for more than 200,000 years, an international team led by Josh Akey of Princeton University and Liming Li of Southeast University reports. Akey and Li identified an initial wave of contact around 200-250,000 years ago, another wave 100-120,000 years ago, and the largest one around 50-60,000 years ago. … Read more
Recent studies have provided detailed insight into how time flows differently on the Moon than on Earth. This is an important discovery for future lunar missions. This difference in time, however small, has important consequences for navigation, communications and activities on the Moon. Understanding Time Dilation on the Moon Since astronauts last visited the lunar … Read more
Astronomers have discovered a previously unknown pair of potential satellite galaxies orbiting the Milky Way. The locations of these dwarf galaxies suggest that hundreds of other unknown miniaturized galaxies could be hiding around us — potentially challenging our understanding of the galaxy’s edges. A satellite galaxy is a group of stars, either in a circular … Read more
Astronomers get their money’s worth. Scientists have used the powerful $10 billion James Webb Space Telescope to peer into the deepest cosmos and capture images of star clusters in an extremely old galaxy for the first time. In the images below you see these star clusters, which are gravitationally bound groups of stars, as they … Read more
Could there be an invisible planet lurking on the edge of our planet? solar system? Can black holes ricochet through space like intergalactic billiard balls? Did our own galaxy’s black hole ‘wake up’ with a bang millions of years ago – and could it do so again? These may not be the questions that first … Read more
Credit: CC0 Public domain About 2.5 billion years ago, free oxygen, or O2first began accumulating to meaningful levels in Earth’s atmosphere, paving the way for the emergence of complex life on our evolving planet. Scientists call this phenomenon the Great Oxidation Event, or GOE for short. But the initial accumulation of O2 on Earth was … Read more
This article was reviewed according to Science fact checked peer-reviewed publication trusted source proofread OK! Credit: CC0 Public domain × close to Credit: CC0 Public domain About 2.5 billion years ago, free oxygen, or O2first began accumulating to meaningful levels in Earth’s atmosphere, paving the way for the emergence of complex life on our evolving … Read more
This article was reviewed according to Science fact checked peer-reviewed publication trusted source proofread OK! An artist’s view of photons, the particles that make up light, that disrupt plasma. Credit: Kyle Palmer / PPPL Communications Department × close to An artist’s view of photons, the particles that make up light, that disrupt plasma. Credit: Kyle … Read more
New research indicates that the Sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the one struck the earth earlier this month. It appears that the magnetic field originates 20,000 miles below the surface of the sun. Previous calculations placed … Read more
New research indicates that the Sun’s magnetic field originates much closer to the surface than previously thought, a finding that could help predict periods of extreme solar storms like the one struck the earth earlier this month. It appears that the magnetic field originates 20,000 miles below the surface of the sun. Previous calculations placed … Read more