A troubling new study shows that legalizing marijuana is linked with an increase in problematic pot use among teens

Recreational marijuana is legal in 11 states, and some Democratic presidential candidates have said the drug should become legal nationwide.
Tags: Science

SpaceX executes ground-based test firing for Crew Dragon’s launch escape system

SpaceX went the distance today with a static-fire test of its Crew Dragon space taxi's launch escape system — the same type of test that ended in a costly explosion when it was conducted in April. A photo released after the firing shows the Crew Dragon's SuperDraco thrusters blazing away on the test stand at SpaceX's Florida facility. The full-duration firing brings the company one step closer to flying NASA astronauts to the International Space Station next year. "SpaceX and NASA te...
Tags: Spacex, Florida, Science, Nasa, International Space Station

After visiting asteroid, Japan’s Hayabusa 2 probe heads back to Earth with samples

Japan's Hayabusa 2 spacecraft and its science team bid a bittersweet farewell to the asteroid Ryugu, 180 million miles from Earth, and began the months-long return trip to Earth with a precious set of samples. "This is an emotional moment!" the team tweeted on Tuesday. “It's sad to say goodbye to Ryugu,” project manager Yuichi Tsuda said at the Japan Aerospace Exploration Agency's command center. “Literally it has been at the center of our lives over the past one and a half years.” T...
Tags: Japan, Science, Earth, Japan Aerospace Exploration Agency, Yuichi Tsuda, Ryugu

Secrets of the largest ape that ever lived

The fossilised tooth of a mysterious extinct ape is shedding new light on the evolution of great apes.
Tags: Science

Ebola vaccine approved as second jab trialled

A second Ebola vaccine is to be offered to thousands of people in the Democratic Republic of Congo.
Tags: Science

Hayabusa-2: Japan spacecraft leaves asteroid to head home

Hayabusa-2 will return with samples of the asteroid after its yearlong journey back to Earth.
Tags: Japan, Science

Venice floods: Climate change behind highest tide in 50 years, says mayor

A state of disaster is declared as the Italian city is hit with a high tide of more than 1.87m.
Tags: Science, Venice

Electric car future may depend on deep sea mining

Demand is soaring for the metal cobalt, an essential ingredient in batteries and abundant on the seabed.
Tags: Science

Netherlands forced to slash speed limit to reduce emissions

The daytime motorway limit will be cut to 100km/h (62 mph) in a bid to tackle a pollution crisis.
Tags: Science, Netherlands

Greta Thunberg to sail to Spain climate summit with YouTubers

The 16-year-old climate activist will sail from the US to Madrid for the COP25 summit.
Tags: Science, US, Spain, Madrid, Greta Thunberg

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