Starlust on MSN

Size matters: A planet needs to be at least as big as Mars for alien life to survive on it

The size of a planet is a major factor that determines if life can gain a foothold on it, even if it's in the habitable zone ...

This planet is almost exactly the size of Earth, but you would never want to live there

NASA’s Transiting Exoplanet Survey Satellite, or TESS, first flagged the object as a candidate. TESS watches for tiny dips in ...
The Cool Down on MSN

Astronomers find Jupiter-size 'super-puff' planets so light they're less dense than cotton candy

"These two planets have densities comparable to a nice blob of shaving foam fresh from the can." ...
SpaceNews

NASA Finds Earth-size Planet Candidates in the Habitable Zone

Is our Milky Way galaxy home to other planets the size of Earth? Are Earth-sized planets common or rare? NASA scientists seeking answers to those questions recently revealed their discovery. “We went ...
New York Post

NASA finds Earth-size planet that could be habitable: ‘An exciting prospect’

Our galaxy may have acquired some new real estate. NASA has discovered an Earth-size planet orbiting around a faraway star — and it could be habitable. Dubbed TOI 700 e, the exoplanet is the fourth ...
AOL

Even planets have their (size) limits

A planet-forming disk made from rock and gas surrounds a young star. NASA/JPL-Caltech/SwRI/MSSS/ Gerald Eichstädt /Seán Doran Scientists have discovered over 4,000 ...
SpaceRef

Earth-Size Planets Are Common in Our Galaxy

An analysis of the first three years of data from NASA’s Kepler mission, which already has discovered thousands of potential exoplanets, contains good news for those searching for habitable worlds ...
CU Boulder News & Events

Newly discovered planet is the size of Earth, but may be covered in volcanoes

In a new study, a team of astrophysicists, including two researchers at CU Boulder, have discovered a small and rocky world orbiting a star far from Earth—similar to our own planet, perhaps, but much ...
Labroots

From Circular to Elliptical: How Planet Size Affects Orbit Shape

How does a planet’s size influence its orbit around its parent star? This is what a recent study published in the Proceedings of the National Academy of Sciences hopes to address as a team of ...
SpaceNews

Measuring the Mass of a Mars-size Exoplanet

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based ...

A Jupiter-size planet that escaped its star’s death

WD 1856 b is the only confirmed case of a planet that survived the death of a Sun-like star. It’s a Jupiter-size world orbiting a white dwarf—the burned-out remnant of a Sun-like star. Now, a team of ...
Newsweek

Video Showing Jupiter’s Size Compared to Other Planets Wows the Internet

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. An animation posted to Twitter has shocked social media users by ...