About 41,000 years ago, something remarkable happened: Earth’s magnetic field flipped and, for a temporary period, magnetic north was south and magnetic south was north. Palaeomagnetists refer to this as a geomagnetic excursion. This event, which is different to a complete … Read More
Phobos, it seems, will not live long in the Universe — at least not on a large cosmic timescale. Astronomers have long suspected that Phobos, the larger and closer of Mars’ two moons, is slowly spiraling inward to eventual destruction. … Read More
Being in space causes the human body to destroy approximately 54% more red blood cells, leading to a potentially dangerous condition known as anemia. According to a new study, the effects persist even after astronauts return to Earth. The researchers … Read More
NASA’s Curiosity rover discovered some intriguing organic compounds on Mars that could be signs of ancient Mars life, but testing that hypothesis will take a lot more work. Researchers report in a new study that some of the powdered rock … Read More
The Dark Energy Spectroscopic Instrument (DESI), which is currently pointing at the skies from its home in the Nicholas U. Mayall Telescope at Arizona’s Kitt Peak National Observatory, is tasked with charting the expansion of space, investigating dark energy, and … Read More
The Earth seems to inhale and exhale in a new animation that shows how carbon is taken up and released as the seasons change. During the summer, the animated continents appear to deflate, indicating times and locations where vegetation is … Read More