Favorite photos from around the globe of Venus, Jupiter, Mars and the moon, which put on a show in the east at dawn this week. Thanks to all who submitted or posted at EarthSky Facebook.
Beautiful image of this morning's planets and moon from Miska Saarikko - Photography/Time-Lapse in Stockholm, Sweden.
More than 15,000 scientists in 184 countries have signed a letter urging the world to address major environmental concerns. “Soon it will be too late to shift course away from our failing trajectory, and time is running out.”
Image via Oregon State University.
What do you think? Should we be advertising our presence in space?
Part of the Arecibo radio message beamed to space on November 16, 1974.
Here are all the details you need for 2017’s Leonid meteor shower, at its best on the mornings of November 17 and 18.
A wide angle view of Leonid fireballs on November 17, 1998 via Juraj Toth.
A heatwave in 2011 killed off seagrass beds in Shark Bay, Australia. Now, scientists have discovered that tiger sharks are helping the ecosystem recover.
A tiger shark swimming above seagrass. Image via Florida International University.
Future space missions won’t be able to carry all their building materials from Earth. Competitors are challenged to fabricate habitats using indigenous materials. $2 million prize!
First place winner: Ice house by SEArch/Clouds Architecture Office. Read more about this design here. Image via NASA.
A remarkable find of fossil teeth from tiny, furry-tailed creatures – thought by scientists to be a human ancestor – dating back 145 million years.
A depiction of the small rat-like mammals, that lived 145 million years ago, believed to be the earliest known ancestors of most modern mammals, including humans. Image courtesy of Dr Mark Witton, palaeo-artist, University of Portsmouth.
Are you ready for 15 days of darkness, November 15-30? No need to be. It’s a hoax.
Earth is always half illuminated by sunlight. Notice the crescent of illumination on one edge in this composite image, which is from the Suomi NPP satellite. If you were on the other side of Earth when the images used in this composite were acquired, you'd see Earth shining brightly in reflected sunlight, aka daylight. Image via NASA/ NOAA.
This star has a spiral disk of dust around it. Processes in the inner disk – winds, or swirls or clashes of pebbles – seem to be casting shadows on the outer disk.