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The United Nations Office for Outer Space Affairs (UNOOSA) works to promote international cooperation in the peaceful use and exploration of space, and in the utilisation of space science and technology for sustainable economic and social development. Read More

the Sturgeon Moon The lunar phase that brightened up the nocturnal sky on Sunday August 22 is known as the Sturgeon Moon. Read More

Sirius is twice as large as our sun, and 20 times brighter. If it were positioned in place of our sun, certainly our atmosphere would be stripped away, maybe evaporate the oceans, and the enormous radiation would fry most living things. Read More

The masses of just some of the small knots of gas on VY Canis Majoris are more than twice that of Jupiter. The star itself has a mind-boggling radius 1,420 times that of our sun. Betelgeuse is also immensely larger than our sun, yet VY Canis Majoris is so huge it sheds 100 times more mass than Betelgeuse. Read More

70,000 years As far as the longest period comets go, the current leaders are Comet Hyakutake with an orbital period of 70,000 years, Comet C/2006 P1 with an orbital period of about 92,000 years and Comet West with an orbital period of about 250,000 years. Read More

It will be decades until Halley's gets close to Earth again in 2061, but in the meantime, you can see its remnants every year. The Orionid meteor shower, which is spawned by Halley's fragments, occurs annually in October. Read More

Neptune: 5.43 km/s (12,146 miles per hour), or a period of about 163.72 years. Read More

It is divided into light areas called the Lunar Highlands and darker areas called Maria (literally, "seas"; the singular is Mare). Read More

"In space, it's a matter of insulation. Just as your blanket keeps your body heat in so you stay warm in bed, NASA space suits have insulation systems as well as heaters." How Stuff Works finds that "Spacesuits designed by NASA for Apollo astronauts used heating elements to protect astronauts from extreme cold. Read More

Will Earth be swallowed by a black hole? Absolutely not. While a black hole does have an immense gravitational field, they are only "dangerous" if you get very close to them. Read More

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