What would happen to our planet if all us humans – for some reason – suddenly vanished? Here’s AsapSCIENCE’s take on it.
Distinctive underwater sounds announce the birth of an iceberg, say researchers. In a recent study, scientists used underwater microphones aboard buoys to record a variety of iceberg births at the Hans Glacier in Svalbard, Norway during three days in August 2013. These recordings were combined with time-lapse photos of the glacier during the same time period.
Wow! Scientists working with NASA’s Deep Space Network antenna at Goldstone, California have released the first radar images of asteroid 2004 BL86, which flew closer to Earth on Monday than any asteroid this large will again until the year 2027. The radar images show that the asteroid has its own small moon!
What does meditation do to your brain and body? Here’s a new AsapSCIENCE video on the power of meditation, according to science.
You know that certain smell in the air after a light rain? Scientists at MIT believe they may have identified the mechanism that releases this aroma, as well as other aerosols, into the environment.
When a raindrop hits a surface, tiny air bubbles burst from the drop in a fizz of aerosols. Watch the high-speed video.
Did you see the largest picture ever taken, released on January 5? The picture has a staggering 1.5 billion pixels, so you’d need 600 HD television screens to display it. It shows the neighboring Andromeda galaxy, closest spiral galaxy to our Milky Way. Now daveachuk on YouTube has created this wonderful fly-through video, showing detail in the gigantic Andromeda pic. Enjoy feeling small! And remember … each one of those white dots? Each one is a sun, much like the sun that powers all life on Earth.
Eta Carinae consists of two massive stars, one with an estimated 30 times our sun’s mass and the other star with 90 times our sun’s mass, outshining our sun by some 5 million times. The second star is the most luminous and massive star within 10,000 light-years of Earth. The very eccentric mutual orbit of the two massive stars of Eta Carinae bring them close every 5.5 years. The last time this happened was in August, 2014, when NASA astronomers turned their instruments on this system to study it in detail. This video is the result of that detailed study. Fascinating!
Images taken by NASA’s Mars Reconnaissance Orbiter have revealed the missing Beagle 2 Mars Lander, built by the United Kingdom, and lost on Mars since 2003.
Earth human population has now exceeded 7 billion. How long did it take for the world to add each billion? What improvements in health and science helped population growth? And how long do demographers think it will take to reach 8 billion, and 9 billion? This video from the Population Reference Bureau, best source we know for population data and insights, helps you visualize the answers.
We could not live as close to Rigel as we are to the sun, because its surface temperature is much hotter, about 19,000 degrees F (11,000K) in contrast to about 10,000 degrees F for the sun. Overall, is about 40,000 times brighter than our local star. Earth would need to be about 200 times farther away, or about 5 times as far as Pluto. Even then the light would not be the same, as much would be at higher, bluer, wavelengths. Counting all its radiation (not just visible light, but infrared, ultraviolet and so on), Rigel is 66,000 times more powerful than the sun. With such enormous energy, you might be surprised to find that it has only 17 times more mass, and 70 times the width, of our sun. Yet Rigel is not one of the galaxy’s largest stars …