Dark Matter Keeps Its Secrets - SpaceTime with Stuart Gary Series 21 Episode 31

Apr 20, 2018, 12:33 PM

Stream on demand from www.bitesz.com (mobile friendly).

*Dark Matter keeps its secrets

Astronomers are back in the dark about what dark matter might be, after new observations have shown that it’s not interacting with forces other than gravity after all. The findings add more mystery to the enigma of dark matter – an invisible substance which makes up over 80 percent of all the matter in the universe.

*New lightning study about to begin

A new suite of European Space Agency instruments aboard the International Space Station are about to begin studying mysterious upper atmospheric lightning events from orbit Every second, around 45 lightning strikes jolt Earth’s atmosphere, where powerful reactions in thunderstorm clouds alter the chemical composition of the air inside and around them.

*The truth behind NASA’s twins study

In what may be a perfect example of what happens when news editors get journalists who usually chase fire engines or politicians to cover a science story -- media outlets have been busy issuing corrections after reporters wrongly claimed that seven percent of the DNA of an astronaut had changed following a year-long space flight – compared to his identical twin who remained on Earth.

*Moscow launches top secret experimental satellite

Moscow has launched what may be a new experimental spy satellite. The top secret flight was launched on a Soyuz 2-1V rocket from the Plesetsk Cosmodrome in northern Russia.

*China launches three more spy satellites

China has launched another trio of what it euphemistically calls remote sensing satellites. The Yaogan Weixing-31-01 spacecraft are part of China’s latest generation of military surveillance and reconnaissance satellites.

*China’s sat nav system takes shape

China has successfully launched two more Beidou navigation satellites into orbit.

*The Science Report

Up to one in five people may show signs of a synesthesia.

Arctic mountain glaciers are melting at an unprecedented rate.

Two types of contagious cancer affecting Tasmanian devils may have similar origins.

A rare 700-year-old Byzantine bronze ring discovered by a gardener in Northern Israel.

Teaching an autonomous car who to kill and who to save.

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