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Massive Stars and their approximate Size

Astronomers have found massive stars in the early universe, primarily located in distant galaxies that formed shortly after the Big Bang. These regions are often studied through advanced telescopes capable of observing very distant light, such as the Hubble Space Telescope and the upcoming James Webb Space Telescope. In terms of size, these monster stars can have diameters ranging from about 100 to over 300 times that of our Sun. The Sun’s diameter is approximately 1.4 million kilometers (about 864,000 miles), so these massive stars could be approximately 140 million to over 420 million kilometers (about 87 million to 261 million miles) in diameter.
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Astrobee's first robot completes initial hardware checks in space

NASA astronaut Anne McClain performs the first series of tests of an Astrobee robot, Bumble, during a hardware checkout. To her right is the docking station that was installed in the Kibo module on the International Space Station on Feb. 15. Bumble, and another robot named Honey, launched to the space station on Apr. 17, aboard Northrop Grumman's eleventh commercial resupply services mission from NASA's Wallops Flight Facility in Virginia. When needed the robots will be able to return to their docking station on their own and recharge their battery power.

from Space Exploration News - Space News, Space Exploration, Space Science, Earth Sciences http://bit.ly/2VPHGPX
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