Category: Documentary

Climate change did not “cause” Harvey or Irma, but it’s a huge part of the story

Climate change did not “cause” Harvey or Irma, but it’s a huge part of the story

Climate is not central, but by the same token it is grossly irresponsible to leave climate out of the story, for the simple reason that climate change is, as the US military puts it,...

Plate Tectonics May Have Begun a Billion Years After Earth’s Birth

Plate Tectonics May Have Begun a Billion Years After Earth’s Birth

Precisely what Earth looked like before plate tectonics, which drive these chunks of crust around, bumping and grinding into one another, is an open question. During the Archean eon 4 billion to 2.5 billion years...

Ancient Mars Lake Had Multiple Environments That Might Have Supported Life

Ancient Mars Lake Had Multiple Environments That Might Have Supported Life

The lake that once filled much of Mars’ huge Gale Crater featured multiple potentially habitable environments segregated by depth, as some water bodies here on Earth do, a new study based on observations by...

How Cassini Managed to Live Such a Long and Useful Life at Saturn

How Cassini Managed to Live Such a Long and Useful Life at Saturn

Mission scientists gathered at NASA’s Jet Propulsion Laboratory (JPL) on Sept. 15 to say goodbye to the probe and watch its final plunge. JPL was the lead institute on designing and building Cassini, and the probe...

Asteroids: Fun Facts and Information About Asteroids

Asteroids: Fun Facts and Information About Asteroids

Despite their size, asteroids can be dangerous. Many have hit Earth in the past, and more will crash into our planet in the future. That’s one reason scientists study asteroids and are eager to...

Arecibo Observatory: Watching for Asteroids, Waiting for E.T.

Arecibo Observatory: Watching for Asteroids, Waiting for E.T.

Arecibo Observatory, which is in Puerto Rico, is the location of the world’s largest single-dish radio telescope. Because radio telescopes can work at all times of day and in all kinds of weather, the...

Life Inside a Secret Chinese Bitcoin Mine

Life Inside a Secret Chinese Bitcoin Mine

The town itself is so high up in the mountains that you have to bring your own cans of oxygen. Mobile phone signals frequently disappear around the mountains and valleys that surround the township....

Stellar Duo’s Spectacular Explosive Dance Illuminated Via 3D-Printed Model

Stellar Duo’s Spectacular Explosive Dance Illuminated Via 3D-Printed Model

The double-star system V745 Sco is about 25,000 light-years from Earth, and consists of a big, aging red giant star and a small stellar core called a white dwarf. As they orbit each other, material from the...

Space Lung Tissue Experiment Returns to Earth

Space Lung Tissue Experiment Returns to Earth

Little is known about how conditions in space affect astronauts’ lungs, according to Joaquin Cortiella, director of the Lab of Tissue Engineering and Organ Regeneration of the University of Texas Medical Branch (UTMB) at...

Halley’s Comet: Facts About the Most Famous Comet

Halley’s Comet: Facts About the Most Famous Comet

Halley’s Comet is arguably the most famous comet. It is a “periodic” comet and returns to Earth’s vicinity about every 75 years, making it possible for a human to see it twice in his...