Scientists examined rock cores taken from the Chicxulub crater in Mexico, site of the asteroid impact that triggered dinosaur extinction, and found iridium, a telltale sign of asteroids. Source: https://earthsky.org/earth/asteroid-dust-iridium-chicxulub-crater-dinosaur-extinction…
Tag: Coincidence
Machines Are Inventing New Math We’ve Never Seen
An anonymous reader quotes a report from Motherboard: [A] group of researchers from the Technion in Israel and Google in Tel Aviv presented an automated conjecturing system that they call the Ramanujan Machine, named after the mathematician Srinivasa Ramanujan, who developed thousands of innovative formulas in number theory with almost no formal training. The software system has already conjectured several original…
The 1st sign of intelligent life beyond Earth?
Physicist Avi Loeb of Harvard believes we should take seriously the idea that ‘Oumuamua – the 1st known object to pass through our solar system from interstellar space – might have been created by an alien civilization. His new book is called “Extraterrestrial.” Source: https://earthsky.org/space/book-avi-loeb-extraterrestrial-1st-sign-of-intelligent-life…
Update on the 7 Earth-sized planets orbiting nearby TRAPPIST-1
A new study of the seven Earth-sized exoplanets around TRAPPIST-1 indicate that all 7 planets are extremely similar to each other in makeup, but potentially quite different from Earth. Source: https://earthsky.org/space/7-trappist-1-planets-similar-composition-unlike-earth…
The obliquity of Mars: Periodic bedding in Tithonium Chasma
Earth’s seasons are caused by the tilt of our planet’s rotational axis to the orbital plane or obliquity. Mars’ obliquity is currently about 25 degrees, which is not much different from Earth’s 23 degrees. However, numerical calculations by scientists at the Paris Observatory and Massachusetts Institute of Technology suggest that this near-agreement is a coincidence. Source: https://phys.org/news/2021-01-obliquity-mars-periodic-bedding-tithonium.html…
Parler CEO Complains Vendors ‘All Ditched Us Too’, While Confused Users Download ‘Porn-y’ App Parlor
The Verge reports: The CEO of the conservative-friendly social app Parler said that all of its vendors have abandoned the company following recent bans from Google, Apple, and Amazon. “Every vendor, from text message services to email providers to our lawyers, all ditched us too, on the same day,” Parler CEO John Matze said in an interview with Fox News on…
220 years ago today: 1st asteroid discovered
Giuseppe Piazzi discovered the asteroid Ceres – now considered a dwarf planet – on January 1, 1801. Source: https://earthsky.org/space/jan-1-1801-discovery-of-ceres…
Bull’s head: The Hyades star cluster
Meet the bright star Aldebaran, part of a V-shaped pattern of stars called the Hyades. This easy-to-find star cluster represents the face of Taurus the Bull. Source: https://earthsky.org/favorite-star-patterns/v-shaped-hyades-star-cluster-easy-to-find…
The ‘Great’ Conjunction of Jupiter and Saturn
On Monday, December 21, Jupiter and Saturn will merge in the night sky in an astronomical event known as a “Great Conjunction,” appearing closer to one another than they have since Galileo’s time in the 17th century. NASA reports: The planets regularly appear to pass each other in the solar system, with the positions of Jupiter and Saturn being aligned in…
Boom! Bam! Boom! How to make a triple crater on Mars
Like many worlds in our solar system, Mars has prominent impact craters. A particularly unusual example is shown in this new image from ESA’s Mars Express: an ancient triplet composed of 3 overlapping craters. Source: https://earthsky.org/space/mars-express-ancient-triple-impact-crater…