Existential risk
A global catastrophic risk is a hypothetical future event with the potential to seriously damage human well-being on a global scale. Some events could destroy or cripple modern civilization. Other, ev...
Existential risk - Wikipedia
Here’s what coronavirus does to the body
From blood storms to honeycomb lungs, here’s an organ-by-organ look at how COVID-19 harms humans.
The Coming Ice Age - 1978
Climate experts believe the next ice age is on its way. - Leonard Nimoy, 1978 Excerpt from the 1978 show, In Search Of: The Coming Ice Age Purchase the entire show here; https://visual-entertainmen...
The Coming Ice Age - 1978
"Climate experts believe the next ice age is on its way." - Leonard Nimoy, 1978 Excerpt from the 1978 show, In Search Of: "The Coming Ice Age" Purchase the e...
Is an Ice Age Coming?
Is winter coming? Find out in this episode of Space Time. Get your own Space Time t­shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: faceb...
Earth heading for another ICE AGE – Scientists expect big freeze as solar activity SLUMPS
THE Earth is heading towards another ice age as solar magnetic activity is set to drop by up to 60 per cent in the next 15 years.
Crippled Atlantic Currents Triggered Ice Age Climate Change
The last ice age wasn’t one long big chill. Dozens of times temperatures abruptly rose or fell, causing all manner of ecological change. Mysteriously, ice cores from Greenland and Antarctica show that...
Google developing kill switch for AI
Scientists from Google and Oxford University are working on first steps to ensure robots do not go rogue.
Massive, Ancient Asteroid Crater may Provide Clues to Dinosaur Extinction
Scientists digging deep into the Gulf of Mexico say they have cracked into a crater, formed some 65 million years ago after a massive asteroid struck the earth. The 33-member team of scientists from a...
Zika Virus Could Be Bigger Global Health Threat Than Ebola, Say Health Experts
The Zika virus outbreak in Latin America could be a bigger threat to global health than the Ebola epidemic that killed more than 11,000 people in Africa. That is the stark claim of several senior heal...
‘Alien Megastructure’ Star Apparently Thronged By Comets
A star in a faraway solar system has caused quite a stir among astronomers. Its light fluctuates dramatically and in strange patterns, so scientists think something large and weird-shaped might be cir...
Frozen Cave Lion Cubs From The Ice Age Found In Siberia
Russian researchers have announced the discovery of cave lion cubs found in the Ice Age permafrost of Yakutia, Siberia. The frozen cats are the first of their kind ever found in such a well-preserved ...
WHO Study Shows 3.7 Billion People Infected With Herpes Virus
More than half the world’s population is infected with the form of the herpes virus that causes cold sores, according to new numbers from the World Health Organization. In the Americas, around 39 per ...
Unexpected Asteroid To Zip Past Earth On Halloween
We can expect a totally different kind of trick-or-treater this coming Halloween. A rather large asteroid—discovered less than three weeks ago—is set to to fly past the Earth at a distance not seen in...
Why Humanity's Survival May Depend On Colonizing Mars
After decades of space exploration, and countless movies on the subject, why exactly does Mars continue to inspire such high levels of fascination?Both the red planet and NASA are coasting on a wave o...
Scientists Find Evidence Of An 800 Foot MEGATSUNAMI Caused By A Collapsing Volcano
Scientists working off west Africa in the Cape Verde Islands (pictured) have found evidence of a megatsunami that dwarfs anything humans have ever seen. They say the sudden collapse of a volcano aroun...
Asteroid Impact, Volcanism Were One-Two Punch For Dinosaurs
For 35 years, paleontologists and geologists have debated the role these two global events played in the last mass extinction, with one side claiming the eruptions were irrelevant, and the other side ...
Fermi paradox
The Fermi paradox (or Fermi's paradox) is the apparent contradiction between high estimates of the probability of the existence of extraterrestrial civilization and humanity's lack of contact with, or...
Fermi paradox - Wikipedia
Pandemic
A pandemic (from Greek πᾶν pan "all" and δῆμος demos "people") is an epidemic of infectious disease that has spread through human populations across a large region; for instance multiple continents, o...
Pandemic - Wikipedia
Extinction risk from global warming
The extinction risk of global warming is the risk of species becoming extinct due to the effects of global warming.
The scientific consensus in the IPCC Fourth Assessment Report is that In one stu...
Extinction risk from global warming - Wikipedia
Avoiding dangerous climate change
Avoiding dangerous climate change (also expressed with equivalent terms such as preventing dangerous anthropogenic interference with the climate system) is a major objective of both scientific researc...
Ice age
An ice age is a period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. With...
Ice age - Wikipedia
Ecological disaster
An environmental disaster is a disaster to the natural environment due to human activity, which distinguishes it from the concept of a natural disaster. It is also distinct from intentional acts of wa...
Ecological disaster - Wikipedia
Megatsunami
Megatsunami is an informal term to describe a tsunami that has initial wave heights that are much larger than normal tsunamis. Unlike usual tsunamis – which originate from tectonic acti...
Megatsunami - Wikipedia
Impact event
An impact event is a collision between celestial objects causing measurable effects. Impact events have physical consequences and have been found to regularly occur in planetary systems, though the m...
Impact event - Wikipedia
2007 VK184
2007 VK184 (also written 2007 VK184) is a near-Earth asteroid estimated to be about 130 meters (430 ft) in diameter. It was listed on the Sentry Risk Table with a Torino Scale rating of 1. A Tori...
Here’s what coronavirus does to the body
From blood storms to honeycomb lungs, here’s an organ-by-organ look at how COVID-19 harms humans.
Technological singularity
The technological singularity is the hypothesis that accelerating progress in technologies will cause a runaway effect wherein artificial intelligence will exceed human intellectual capacity and contr...
Steppe-tundra
Steppe-tundra or mammoth steppe is a very cold dry-climate vegetation type consisting of mostly treeless open herbaceous vegetation. It was widespread during Pleistocene times at mid-latitudes of Eura...
Steppe-tundra - Wikipedia
Antonine Plague
The Antonine Plague of 165–180 AD—also known as the Plague of Galen, who described it—was an ancient pandemic brought back to the Roman Empire by troops returning from campaigns in the Near East. It h...
Google developing kill switch for AI
Scientists from Google and Oxford University are working on first steps to ensure robots do not go rogue.