Hubble Trouble - How did the Space Telescope Mirror End Up Flawed ?

Hubble Trouble – How did the Space Telescope Mirror End Up Flawed ?

Admin cameras, space, Technology 0 Comments

In April of 1990 the American Shuttle Discovery launched up from the Earth, into a higher orbit than ever before, to deploy a special payload: the Hubble Space Telescope. Above even the thinnest part of the atmosphere, Hubble would be able to see far-off stars and galaxies without distortion and expand our understanding of the distant past. Or at least, that was the plan. But by June it was clear that there was something very wrong: the telescope with one of the most perfectly ground mirrors couldn’t focus properly. Apparently, the first great Space Observatory was ‘short-sighted’. Hubble’s 2.5-metre (8.2 …

Will We Ever Find and Understand Extraterrestrial Messages ?

Will We Ever Find and Understand Extraterrestrial Messages ?

Admin Extraterrestrial, space, Technology 0 Comments

We have been searching for signs of extra-terrestrial life for the last 50+ years, and so far we have found no evidence of anything beyond our planet. But what are we searching for?. We are framed by our own human expectations, our current technology and understanding of the universe and the physics that we believe make it. In other words, we are looking for what we might expect other beings like us, might send and use technology that we know about. The first problem is that if we got a signal or message from ET, could we understand it. Would …

Why is the sun hot ?

Why is the Sun hot ?

Admin Science, space 0 Comments

Why is the sun hot?,  now before you jump on the comments and say “because it’s the sun, stupid” think about it, our sun is basically a giant nuclear reactor at the centre of our solar system but not like the ones on earth. They create energy by nuclear fission, that is they split large atoms like uranium into smaller lighter ones and in the process it releases large amount of energy. Atomic bombs also work in the same way which is why they are so destructive. The sun creates its energy by nuclear fusion, the most efficient way to …