As planets orbit their stars, those stars orbit their mutual center-of-mass, creating “wobbles” in their motion.
This stellar wobble , or radial velocity, reveals planetary masses and orbital periods, up to an uncertain inclination angle .
Newly-Found Planets On The Edge Of Destruction – Eurasia Review
The hunt is on for exomoons around alien planets and scientists may have just found one | Space
Astronomers have announced the possible detection of an exomoon, or a moon in another stellar system from our own, the second such candidate observation to date.
"These are objects that everybody suspected would be there, but there wasn't a lot of formal research on it before 2007," Marialis Rosario-Franco, an astrophysicist at the National Radio Astronomy Observatory in New Mexico who studies exomoons but was not involved in the new research, told
Rogue planets: How wandering bodies in interstellar space ended up on their own
Finding more and more exoplanets to study has, as we might have expected, widened our understanding of what a planet is. In particular, the line between planets and "brown dwarfs"— cool stars that can't fuse hydrogen like other stars —has become increasingly blurred.
While about half of stars and brown dwarfs exist in isolation, with the rest in multiple star systems , we typically think of planets as subordinate objects in orbit around a star.
Potato Planets: How A Planet Ends Up Shaped Like An Egg
Everyone expects planets in space to look like a circle, so when one appeared looking like a potato , it's no surprise it caught the attention of astronomers and Twitter users alike. If there's one thing outer space has proven over the years, it's that you should always expect the unexpected.
Discovery Alert: Water Vapor Detected on a 'Super Neptune' – Exoplanet Exploration: Planets Beyond
Illustration of a “super Neptune,” TOI-674 b, with an atmosphere that, according to a recent study, includes water vapor. Image credit: NASA/JPL-Caltech
Key facts: This recently discovered planet, a bit bigger than Neptune and orbiting a red-dwarf star about 150 light-years away, places it in an exclusive club: exoplanets, or planets around other stars, known to have water vapor in their atmospheres.
Planets align for Mars with a 73-62 win against Highlands | Pittsburgh Post-Gazette
Scientists are a step closer to finding planets like Earth - GOV.UK
A UK-backed mission that will search for Earth-like planets has been given the green light to continue development after passing a critical milestone review.
The UK Space Agency has invested £25 million in innovative science for the European Space Agency mission, called Planetary Transits and Oscillations of stars (PLATO), ensuring UK scientists and engineers, led by the University of Warwick, will take part in all aspects of the mission.
The Most Habitable Alien Planets Might Be 'Super-Earths'
A magnetosphere is produced by the churning of a planet's core, when metals like iron in the liquid outer core solidify over time. But the freezing point of iron rises and falls in response to changes in pressure.
For this study, Kraus and his team zapped a material sample that contained iron with 16 lasers to turn up the heat. They increased the intensity of these lasers to "slowly" increase the pressure of the sample without increasing the temperature in a significant way.
Scientists wielded giant lasers to simulate an exoplanet's super-hot core | Popular Science
Determining this feature of exoplanets required an experiment with giant lasers and an incredibly thin sliver of iron placed under unprecedented pressure. "We're finding so many planets, and [one of] the big questions people have are: are these planets potentially habitable?
To answer this question, researchers don't normally start with thinking about a planet's core. Instead, they ask whether the planet is the right distance from its star or whether it has water. But Kraus and his team wanted to find other ways to discern whether a planet is habitable.
Happening on Twitter
Sleeping in a tent in the wild, Holmes woke Watson: See the sky. What do you deduce? Watson: Wow. So many stars. I… https://t.co/VwkbmvI0iP kaushikcbasu (from New York) Mon Jan 17 16:22:22 +0000 2022
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