For the first time, astronomers have detected the vaporized remains of the crusts of long-dead Earth-like and Mars-like planets in the atmospheres of white dwarf stars.
Artist's concept of planetary crust fragments being vaporized around a white dwarf star. Image via University of Warwick
/ Mark Garlick.
A new study suggests that our Milky Way galaxy is filled with planets like Earth, containing continents and oceans. If so, life might be common in the Milky Way.
A new study suggests that the galaxy is filled with planets covered in oceans. Image via University of Copenhagen and NASA/ ESA/ G. Bacon/ STScI.
On Sunday, February 28, 3 astronauts will perform the first in a pair of International Space Station spacewalks to ready the station for solar array upgrades. How to watch live.
NASA spacewalker and Expedition 64 Flight Engineer Victor Glover works to ready the International Space station's port-side truss structures during a spacewalk on January 27, 2021, in preparation for upcoming solar array upgrades. Image via NASA
Researchers find that whether you live in a rural or urban environment, your sleep patterns are affected by the full moon. On the nights leading up to full moon, people fall asleep later and sleep less overall.
A recent study shows that full moons might affect our sleep.
To the extent that we can see them, galaxies in the very early universe should look relatively young and unformed. But galaxy ALESS 073.1 is a surprise to astronomers: it looks more mature than we’d have any reason to expect. Why?
Galaxy ALESS 073.1, located 12 billion light-years away and formed when the universe was only 10% of its current age, has not only a large bulge but also a rotating disk, going against common understanding of galaxy formation. This image, observed with the ALMA telescope
, is incredibly detailed for such a distance. Image via Federico Lelli et al./ UBC
Particles carried from Earth’s poles via our planet’s magnetosphere could be interacting with lunar rocks to create small quantities of water on the moon.
Artist's concept of the moon within Earth's magnetic tail, the part of our magnetosphere that stretches outward away from our sun. The moon sweeps within this tail each month at full moon. Image via E. Masongsong/ UCLA/ EPSS/ NASA/ GSFC/ SVS/ Duluth News Tribune
You know the old problem of how to portray the round globe of Earth on a flat map? Now a trio of map experts has worked together to solve this problem. Their new map is 2-sided and round.
The new double-sided map, above, minimizes all 6 types of map distortions. The designers used an equidistant azimuthal projection
: a compromise projection, like the Winkel Tripel map (see image below), with small errors in both local shapes and areas, instead of optimizing one at the expense of the other. Antarctica and Australia are more accurately represented than in most other maps, and distances across oceans or across poles are both accurate and easy to measure, unlike one-sided flat maps. Goldberg-Gott error score: 0.881. Map by J. Richard Gott, Robert Vanderbei and David Goldberg. Image via Princeton University
Map by J. Richard Gott, Robert Vanderbei and David Goldberg Image via Princeton University. https://www.princeton.edu/news/2021/02/15/princeton-astrophysicists-re-imagine-world-map-designing-less-distorted-radically
New research suggests that the famous black hole Cygnus X-1 – first black hole ever detected and one of the closest to Earth – is farther away and much more massive than previously believed.
Artist's concept shows a stellar companion (in blue) losing gas to the black hole Cygnus X-1. Image via Phys.org
/ International Centre for Radio Astronomy Research.
What are the best solar system and deep-sky objects to view to get the most out of your binoculars? From moon-encircled worlds to starry knots in the Milky Way, our list makes the sky’s wonders easy to find.
. | The Orion Nebula is a hazy patch on Orion's sword visible even without binoculars. Image via ESO/ S. Brunier.