The Other Wonders of the Universe

Not only does the spine stretch in space, but the heart gets smaller, too

With less gravitational force than on Earth, there’s less pressure on your spine and so it’ll get a bit longer, effectively making you as much as two inches taller. In this microgravity environment, your blood also tends to move towards the heart and head. The heart interprets this as an increase in the amount of blood in the body and that it needs to pump less, so it shrinks.Both effects are only short-lived and, after a brief period of readjustment on arriving back home, the heart and spine return to normal   http://cashfromnet.in/home?ref=om151 

 The light reaching Earth today is 30,000 years old

The sun’s rays are produced by fusion reactions deep within its core. Once a single photon (light particle) has been made, it has an arduous journey to get out of its dense surroundings. It travels at nearly 300,000km per second—trying to cover a distance of about 700,000km—but is constantly bumping into charged particles and changing direction. Eventually, after around 30,000 years, it escapes the sun and, in just 8.3 minutes, travels the last 150 million km to Earth. http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab

About 50 tonnes of space dust and rocks fall to Earth each day
Many people are familiar with shooting stars, but the reality is that these streaks of light are pieces of rock zipping through our atmosphere. In most cases, the rocks are destroyed on entry, leaving only fine dust to drift down to Earth. If you run a magnet around the gutter of your house or the base of the walls, most of the dust you collect will have its origins in outer space.

The surface of Venus is so hostile you would either boil, be squashed or dissolve!
Although it’s the second planet from the sun, Venus is the hottest because it has a very dense atmosphere made up of so-called “greenhouse gases.” The 1970 Soviet Venera lander recorded surface temperatures of around 500C.  http://x.co/YmSk

If the heat didn’t get you, then the weight of the thick atmosphere would crush you (it’s about 90 times the pressure we experience on Earth). And, if you survived that, you’d be dissolved by sulphuric acid rain.

There could be life in the oceans under the thick, icy crust of Europa, Jupiter’s moon
The energy from the sun underpins our entire food chain, but down in the depths of our oceans—where no sunlight penetrates—entirely separate ecosystems thrive around hyperthermal vents, drawing energy from the heat. It’s now believed that one of the best chances of finding life elsewhere in our solar system is around similar underwater vents in Europa’s vast sub-surface oceans. 

Mars appears red because it’s rusting 
Actually, the surface is salmon pink, but this colouring comes from a very common chemical process that we’ve all seen on Earth. Rust forms  http://www.clickworker.com/become-a-clickworker?utm_source=484944&utm_campaign=CW4CW&utm_medium=email