A waxing gibbous moon appears more than half lighted, but less than full. It rises before sundown and sets somewhere between midnight and dawn. Source: https://earthsky.org/moon-phases/waxing-gibbous…
Tag: impact craters
Earth’s 2nd largest meteorite crater much younger than thought
Earth’s biggest meteorite crater is Meteor Crater in Arizona. The 2nd biggest is Australia’s Wolfe Creek Crater, likely formed when a 50-foot meteor struck about 120,000 years ago. Source: https://earthsky.org/earth/how-old-is-wolf-creek-crater…
Spacecraft spies river relic on Mars
These images from the Mars Express spacecraft show an ancient, dried-up river system, one of the longest valley networks on Mars. Source: https://earthsky.org/space/mars-river-relic-images…
Why the moon is such a cratered place
Look up on a clear night and you can see some circular formations on the face of our lunar neighbour. These are impact craters, circular depressions found on planetary surfaces. Source: https://phys.org/news/2019-07-moon-cratered.html…