How Scientists Are Hunting for the Universe’s First Stars

Looking through a telescope is like looking back in time. Because light has a finite speed limit, the farther away you look, the deeper into the past you see. With radio telescopes we can even see the universe as it was just after the big bang, nearly 13.8 billion years ago. But after that early […]

Pluto 101 | National Geographic

– [Instructor] At the edge of the solar system Pluto pushes the boundaries of our understanding of the universe. Nestled within the far flung Kuiper belt the dwarf planet is believed to be one of the countless celestial objects left over from the formation of the solar system. While it is one of the Kuiper […]

Hell bound up the Congo River on a shanty boat

The ‘Gbemani’ and a captain are fighting against the strong current. After a week, they’ve made only three hundred and ten miles. The journey is turning into a long, tedious nightmare. But the delays create good business for Marie, an unemployed nurse,. A combination of the weather, worsening sanitary conditions are starting to make people […]

Solar Eclipse 101 | National Geographic

– [Narrator] A solar eclipse happens when a new moon moves between the Earth and the sun, blocking some or all of the sun’s rays from reaching the Earth. By cosmic chance, even though the sun is 400 times wider than the moon, it’s also 400 times farther away. Therefore, the two objects appear the […]

Fossils 101 | National Geographic

(gentle music) – [Narrator] Like buried treasure, they lie hidden from sight. Echoes of an ancient past, they whisper secrets and tell tales once lost to time. Fossils are remnants or impressions of ancient organisms that are naturally preserved in stone. While there are hundreds of fossil types, they are often grouped into two major […]

Director’s Cut: Electricity Episode | Weirdest, Bestest, Truest

How Do Sharks and Rays Use Electricity to Find Hidden Prey? | Deep Look

We live in a world full of electric fields. Animals, plants — even the earth itself — creates them. But only a handful of creatures can actually sense them. Sharks — also rays and skates… a whole group, animals called elasmobranchs — can actually detect electricity Maybe it’s like feeling the presence of someone hiding […]

How Spiders Use Electricity to Fly | Decoder

When you think of flying animals, what do you think of? Birds, butterflies, or bees might first come to mind, but what about spiders? Even though they don’t have wings, it turns out that spiders are actually some of nature’s best aviators. So, how do spiders take to the skies? Lightning storms are one of […]

A Nuclear-Powered Space Mission | Mission Saturn

NARRATOR: Way out into space, the sun’s energy-giving rays grow weaker. Solar panels would be little use to Cassini passing distant planets. It needs a far longer lasting source of power. The radioactive power of plutonium-238 In Idaho Falls, behind high level security, the United States Department of Energy harnesses this prized source. The Cassini […]

Germany: The world’s first major renewable energy economy

The planet Earth will be completely devastated by 2050 if natural resources will be exploited at the current rate. The man barbarically devastate the planet, preventing it from being able to recover. According to the scientists, in 50 years people will have to move to another planet, because life on Earth will be impossible. This […]