At the center of a galaxy more than 55 million light-years away, there's a supermassive black hole with the mass of several billion suns. And now, for the first time ever, we can see it. Astrophysicist Sheperd Doeleman, head of the Event Horizon Telescope collaboration, speaks with TED's Chris Anderson about the iconic, first-ever image of a black hole -- and the epic, worldwide effort involved in capturing it.
Astrophysicists and astronomers testified on Capitol Hill about the Event Horizon Telescope (EHT), which captured the very first image of a supermassive black hole. Among the witnesses were Event Horizon Telescope Director Sheperd Doeleman and National Science Foundation Director France Cordova.
A project called the Event Horizon Telescope delivered a fuzzy view of the dark monster at the center of an elliptical galaxy known as M87. The edge of the black hole’s dark circle, known as the event horizon, was surrounded by the bright glare of superheated material falling into the black hole.
Kelvin K. Droegemeier, Director of The White House Office of Science and Technology Policy (OSTP), spoke at the AAAS Annual Meeting on February 15th, 2019. Entitled “A Second Bold Era of American Science and Technology,” it was Droegemeier’s first major speech since taking the helm at OSTP.
The Global Positioning System (GPS) is a collection of satellites, each containing a powerful and precise atomic clock, that broadcasts their time every 30 seconds. Handheld receivers, like your smartphone, can collect this data and perform calculations to figure out their position on the surface of the Earth.
Transparent biosensors embedded into contact lenses could soon allow doctors and patients to monitor blood glucose levels and a host of other telltale signs of disease without invasive tests.
The Pale Red Dot campaign aimed to find a planet orbiting our nearest stellar neighbour, Proxima Centauri. Incredibly, the quest succeeded and the team did indeed find a planet. Even more excitingly, the planet, Proxima b, falls within the habitable zone of its host star. The newly discovered Proxima b is by far the closest potential abode for alien life.
Where are all the aliens? The universe is too big and too old, why have we not met aliens yet? Do they live in computers? Were they wiped out by an ancient super intelligence? Or are we just to primitive to understand their motives? Whatever the answer is, it is incredibly important for our own future.
The universe is unbelievably big - trillions of stars and even more planets. Soo… there just has to be life out there, right? But where is it? Why don’t we see any aliens? Where are they? And more importantly, what does this tell us about our own fate in this gigantic and scary universe?
A new map of the human brain could be the most accurate yet, as it combines all sorts of different kinds of data. This might finally solve a century of disagreements over the shapes and positions of different brain areas.