Galaxies are dynamic systems that continually accrete gas and convert some of it into stars. They ‘quench’ their star formation and continually change their morphology, or shape. They are mainly two sorts - half are alive and half are dead galaxies. Alive galaxies are gas-rich galaxies getting a supply of fresh hydrogen gas from the cosmic web. As this gas…
Exploration is embedded in our very DNA. We venture out into unresolved scientific territories, to demystify mysteries, and to open our minds to unimaginable realities. But most of all, we do it because we crave exploration. We always have!
About 200,000 years ago, the first modern humans originated in Africa. Before long, they began venturing into unchartered…
We live on a small blue planet, which is but a speck in the vast expanse of our universe. We call it home and it spins at a startling rate of 465 m/s, or 1674 km/hr. Why don’t we feel it? Primarily due to the immense size of Earth, and due to the fact that…
“...Cause we are all made of stars” aren't just lyrics to Moby's song. There's some scientific reality to them as well.
You may have been one of of those kids who was told people become stars when they die. Science probably doesn't think that's true. But I can assure you that it's legitimate the other way around. Stars…
Besides youth, it is well-known that we humans are obsessed with defeating death. This was displayed in the way modern man obsessed over the Mayan prediction of apocalypse in 2012. We have a myriad of movies spinning around saving earth from destruction caused by space debris. Interestingly, predominant films have a happy ending reflecting people’s impeccable…
As of 2013 , there are more than 170 million objects smaller than 1 cm in orbit around our planet. About 670,000 objects range between 1 to 10 cm, while about 29,000 larger debris are also circling the Earth. That's a lot of space junk. Fortunately, space is big. Or so we've thought. Soon, space junk will be a bigger problem…
It requires no special intellect to understand the human fascination with the wide blue yonder. For, constant attempts have been made since time immemorial to know the world one is living in better. However, ever since humans accomplished the impossible, i.e., propelling the rocket onto the orbit, the rat race to make ground-breaking discoveries has broken…
Of course you've wondered how the earth is the only planet that supports life in a universe of unfathomable size. Of course, many also argue that we simply haven't found evidence of extraterrestrial life, and the lack of said evidence doesn't kill the possibility of such life. In fact, many may also mathematically point out to…
Humans have mostly depended on chemical combustion to power most of their transportation needs. From motorcycles to airplanes and especially rockets, we generally depend on energy from chemical fuels to cause motion. The enormous amounts of fuels we use are of course, causing pollution. The issues aren't just limited to environmental reasons in the case…
It's been 19 years and 8 months since the launch of the two-part unmanned robotic spacecraft Cassini-Huygens that was sent to know more about Saturn, the sixth planet in our solar system. Cassini is the fourth space probe to Saturn, but the first-ever spacecraft to achieve orbit of the planet. Cassini, which has served as an encyclopaedia…