The Japanese lunar orbiter "Kaguya" saw earth, moon and sun line up on April 6, 2008 and captured another "Earth-rise" and "Earth-set" HDTV video - this time when the Earth was full. picked by AutumnLotus 3 months ago

Beetles first appeared on Earth at the same time as the earliest dinosaurs but turned out to be much better survivors, a new evolutionary study has shown. Today, there are an estimated 350,000 known species of beetle on Earth, and probably several million more yet to be discovered, say scientists. The insects account for about a quarter of all life forms on the planet. picked by AutumnLotus 7 months ago

What would it take to jam a planet's tectonics? It seems that a huge rise in atmospheric temperatures would do the trick, causing continents to grind to a halt, mountains to stop growing and earthquakes to cease. On Earth, the motion of magma in the mantle pushes continental plates around on the surface, but if the magma became too hot and runny it would lose the grip needed to do this. picked by AutumnLotus 3 months ago

Whether or not you believe in a flat earth or a spherical one, this should still give you a chance to read about flat earth theory and post your views. picked by TheStep 1 year ago

The Flat Earth Society considers the notion of a round earth to be a conspiracy. picked by glik 10 months ago

A spectacular, rotating binary star system is a ticking time bomb, ready to throw out a searing beam of high-energy gamma rays – and Earth may be right in the line of fire. picked by AutumnLotus 5 months ago

Our planet is changing before our eyes, and as a result, many species are living on the edge. Yet Earth has been on the edge of habitability from the beginning. New work shows that if Earth had been slightly smaller and less massive, it would not have plate tectonics-the forces that move continents and build mountains. And without plate tectonics, life might never have gained a foothold on our wor... read full post picked by AutumnLotus 6 months ago

Google Earth has some amazing and interesting images to be found. Here are a few, shown in video form (if you can ignore the cheesy music). picked by tundramonkey 1 year ago

A mineral that acts like a sponge beneath Earth's surface stores more oxygen than expected, keeping our planet from becoming dry and inhospitable like Mars. The key to the abundant oxygen storage is the mineral majorite, which exists deep below Earth's surface in the mantle. Without the oxygen stockpile, Earth would probably be a barren planet hostile to life. picked by AutumnLotus 10 months ago

1. Gravity is not the same over the surface of the Earth, 2. Atmosphere 'escapes', 3. The Earth is slowing down... picked by ubikuor 1 year ago

Some crucial ingredients for life on Earth may have formed in interstellar space, rather than on the planet's surface. A new computer model indicates clouds of adenine molecules, a basic component of DNA, can form and survive the harsh conditions of space, and possibly sprinkle onto planets as the stars they orbit travel through a galaxy. picked by AutumnLotus 11 months ago

In this essay, the father of the SMART-1 lunar mission, Bernard Foing of the European Space Agency, looks at the effect the Moon has had on the Earth, and explores how different our world would be if we had no planetary companion. Would life have evolved differently, or at all without our Luna? picked by DrNothing 9 months ago

(lots of reading)

alternately theres HowStuffWorks on time travel picked by camro77 1 year ago

Tiny changes to the length of days on Earth may be due to a mineral in the deep Earth that conducts electricity at high rates, a new study says. picked by h2so4hurts 4 months ago

A team of water experts says the pattern of droughts and floods in South Africa shows our global warming was triggered by the variability of the sun’s irradiance rather than by human-emitted CO2. They say variations in South African rainfall patterns are keyed to periodic reversals of the sun’s magnetic field—and to the constantly changing distance between the sun and the earth a... read full post picked by AutumnLotus 12 months ago

As spacecraft began to launch on journeys to more distant planets, never to return, their mission controllers often commanded them to take departing views of Earth and the Moon. Mariner 10 and Voyager 1 both took such snapshots, as did Mars Odyssey, Venus Express, and many others. picked by AutumnLotus 9 months ago

The clever boffins have finally managed to break the speed of light. A light pulse was so fast that it "exited a specially-prepared chamber before it even finished entering it." picked by TheStep 1 year ago

Diamonds more than 4 billion years old -- nearly as old as the Earth itself -- have been discovered in Western Australia, giving scientists vital clues about the early history of our planet. picked by AutumnLotus 11 months ago

An explosive star within our galaxy is showing signs of an impending eruption, at least in a cosmic time frame, and has for quite some time. From 1838 to 1858, the star called Eta Carinae brightened to rival the light of Sirius, the brightest star in the sky, and then faded to a dim star. Since 1940 it has been brightening again, and scientists think Eta Carinae will detonate in 10,000 to 20,000 y... read full post picked by AutumnLotus 7 months ago

According to Professor Paul Davies "Scientists have no doubt whatever that it is possible to build a time machine to visit the future". Since the publication of Einstein’s Special Theory of Relativity in 1905, few, if any, scientists would dispute that time travel to the future is perfectly possible. picked by shredtone 2 years ago