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The size & age of the Cosmos are beyond ordinary human under-standing. Lost somewhere between immensity & eternity is our tiny planetary home. Carl Sagan

The size & age of the Cosmos are beyond ordinary human under-standing. Lost somewhere between immensity & eternity is our tiny planetary home. Carl Sagan

Picture of the Big Bang Theory

Light is energy that can take on many forms. Radio waves, microwaves, infrared, visible, ultraviolet, X-ray and gamma radiation are all different forms of light. (Illustration: NASA/CXC/M.Weiss)

Thackary's Globules. Located in rich star fields & hydrogen gas, these opaque clouds of interstellar dust & gas are so large they might be able to form stars. They are located in IC 2944, a bright stellar nursery about 5900 ly away toward the constellation Centaurus. The largest of these dark globules, first spotted by S African astronomer A. D. Thackeray in 1950, is likely two separate but overlapping clouds.

The life cycle of a moth or butterfly is fairly commonly known, but the life cycle of a star… probably not…

NGC 1300 by Steven Marx A barred spiral galaxy about 61 million light-years away in the constellation Eridanus. The galaxy is about 110,000 light-years across; just slightly larger than our own galaxy, the Milky Way. It is a member of the Eridanus Cluster, a cluster of 200 galaxies. [**]

What if the other planets were as close as the Moon?

Long-term fans will know that images like this are my favourite. Anything that gives us a sense of exactly how tiny we are in the universe makes me shiver. But do we really have a sense of it?

Beautiful Wavelengths of Solar flare. The first moments of a solar flare, captured at different wavelengths.