imagine a tiny rocky planet, only a third of the size of Earth orbiting its star in only 4.5 hours. These kinds of worlds really exist. Exoplanets vary in
Explore the ultimate fate of the universein this great videofrom PBS Space Time. See how calculating the size of the universe is no small featin this episode of the "Astronomy Cast"podcast. Bibliography Brennan, P. (2020, December 3).What is the universe?NASA.https://exoplanets.nasa.gov/...
If you didn’t have an opportunity to watch it live, I recommend the last Climate Courage of the year, with Dr. David Ko, Richard Busellato and SirCollins Manyasi. There is so much knowledge and insight here, which is so valuable for all of us to understand. If...
The word "year," is normally a unit of time, but light-years measure distance. M. Aurelius/Shutterstock A light-year is a way of measuring astronomical distances in space. That doesn't make much sense because "light-year" contains the word "year," which is normally a unit of time. ...
This is an illustration of the exoplanet Kepler-186f. It is one of the first Earth-sized exoplanets we have discovered that orbits around its parent star within the habitable zone. (Photo Credit : SRStudio/Shutterstock) Factors Of The Star System That Determine Habitability Of A Planet ...
Kamino and Mon Cala are two examples of 'ocean worlds' in the Star Wars galaxy. Both of these planets likely have no dry land at all. From the exoplanets astronomers have discovered in our own galaxy, these two could fall into the "super-Earth" category. With heavier...
"In our circle of close neighbors—the Moon, Mars, Venus—we're the only planet with a magnetic field that's been going strong since the beginning and remains active today," Lapôtre said. But Jupiter-sized exoplanets orbiting close to their star have been identified with magnetic fields,...
So far most of this has been with finding exoplanets. We now know about thousands and thousands of exoplanets, in all shapes and sizes, and with all kinds of conditions. Most of them we don't know very much about. But we're getting better and better at finding them, and — to a ...
Why don't we have better knowledge of seafloor geography? Despite water covering over 70% of the Earth's surface, our understanding of this vast underwater world remains limited. Surprisingly, we possess more knowledge about exoplanets than we do about the depths of our oceans. While we have...
We can think of this as implementing a kind of “recognition task” in which we’re not doing something like identifying what digit a given image “looks most like”—but rather we’re just, quite directly, seeing what dot a given point is closest to. (The...