Slide show of beautiful satellite images. picked by Mershaullk 3 years ago

An abrupt release of methane, a powerful greenhouse gas, from ice sheets that extended to Earth's low latitudes some 635 million years ago caused a dramatic shift in climate. picked by AutumnLotus 2 years ago

This video explains that if we would dig a straight line between two points of the surface of the earth, and drop a capsule in it, it would take 42 minutes to reach the other side, no matter where. picked by Frog 1 year ago

I've never considered this before but now it's been raised it's actually a fascinating questions. The answers pretty cool too picked by Doggylives 3 months ago

This is an amazing slideshow of photos accompanied by music. picked by Neiako 3 years ago

Venus is more Earth-like than previously thought-including lightning where theory held that none could exist. Venus is the world closest to Earth in terms of size, mass, distance and chemical makeup, but while Earth is a haven for life, Venus is typically described as hellish, with a crushing atmosphere holding choking clouds of sulfuric acid over a rocky desert surface hot enough to melt lead. picked by AutumnLotus 2 years ago

Paper is highly perishable, so it makes sense to preserve and digitize paper collectibles as a cultural heirloom - to display and appreciate them while we can still touch and feel these items. In a few dozens years... the pulps will be gone, the old restaurant menus and travel brochures will wither and fade, and ephemera in general will become rather ephemeric indeed. picked by Bornbad 10 months ago

Without us on Earth, what traces would linger? What would disappear?

Very interesting. Hopefully not a dupe (it was a pretty hard search). picked by muppet 2 years ago

So just how big is Earth, really? picked by Gygash 2 years ago

A collection of and discussion about a number of unusual auditory effects and events from The Bloop to Mistpoufers. picked by pocksucket 11 months ago

No, not really. But this guy thinks it is. I just love pseudo-scientists that take themselves seriously. picked by hypnotode 3 years ago

Geologists estimate that plate tectonics began during the Archean period, between 2.5 and 3.8 billion years ago - but they don't know what triggered it. Ancient Earth was too hot for the crust to solidify completely, and the lightest minerals would have floated to the surface over the entire planet, making the subduction of denser plate material unlikely. picked by AutumnLotus 2 years ago

The US military is planning to shoot down a broken spy satellite due to crash land on Earth in the next few weeks, US news agency AP reports picked by topofall 2 years ago

For one hour tonight turn off all your lights and help out our earth.

Follow up to this picked by picklebob12 2 years ago

A vast array of physical and biological systems across the earth are being affected by warming temperatures caused by humans, says a new analysis of information not previously assembled all in one spot. picked by karenben 2 years ago

True colour images of Earth as seen by Rosetta’s OSIRIS camera are now available. The pictures were taken on 13 November during the swing-by, and on 15 November, as Rosetta left on its way to the outer Solar System, after the swing-by. picked by AutumnLotus 2 years ago

Great PowerPoint presentation, includes music and animation. Inspiring! picked by michelleroberts 3 years ago

This presentation displays the Co2 emission levels of every country in the world, as well as their births and death rates - all in real-time. picked by Mershaullk 3 years ago

Think the earth is round? Wrong! No, it's not flat either. It's a cube!

If you disagree with this, you are stupid or evil and have been misled by "malicious educators."

I don't understand this... picked by bluenutria 2 years ago

For a millennium it has lain undisturbed beneath the waves a stone's throw from one of Britain's best-loved beaches.

But now modern technology has revealed this ancient fish trap, used at the time of the Norman Conquest. picked by AutumnLotus 9 months ago