Twinkle Khanna

I start my day with a hot water and lemon routine. I meditate. And I take my problems lightly, like my mother always said: treat them like helium balloons and let them go. I devour a lot of books to feed my mind.

Indian Businesswoman

Jill Tarter

Earlier generations of stars in the galaxy could well have had planets. But really, there was only hydrogen and helium to work with, so they'd all be gas giants and not small, rocky planets.

American Scientist

David Fahrenthold

The federal helium program sells vast amounts of the gas to U.S. companies that use it in everything from party balloons to MRI machines. If the government stops, no one else is ready.

American Journalist

Sam Kean

Most stars just fuse hydrogen into helium, but larger stars can fuse helium into other elements. Still larger stars, in turn, fuse those elements into slightly bigger ones, and so on.

American Writer

Homer Hickam

Tired of burning fossil fuel and polluting the planet? The moon is covered with helium 3, an isotope from the sun that is the perfect fuel for clean fusion reactors.

American Author

Lynn Abbey

I've read short stories that are as dense as a 19th century novel and novels that really are short stories filled with a lot of helium.

John C. Mather

Big Bang gave us hydrogen and helium. We couldn't make people out of hydrogen and helium. So we're made out of exploding stars.

Jimi Hendrix

I have this one little saying, when things get too heavy just call me helium, the lightest known gas to man.

American Musician

David Lee

Liquid helium belongs to a class of fluids known as quantum fluids, as distinct from classical fluids.

American Physicist

Raymond Davis, Jr.

The sun derives its energy from fusion reactions in which hydrogen is transformed into helium.

Helium is odorless and tasteless, so don't expect any sensations when using it in balloons.

No taste/smell

Breathing in helium from a balloon makes your voice high-pitched but it can be dangerous if inhaled too much.

Safety concerns

Objects filled with helium will float, so always secure helium balloons or they'll escape upwards.

Lighter than air

Helium is critical in science, used in superconductors and as a cooling agent due to its low boiling point.

Essential element

Helium is called an inert gas as it doesn't react easily with other elements or compounds.

Inert gas

Helium belongs to the noble gases group in the periodic table, which are all colorless and odorless.

Noble gas

 Along with the idea that the visible universe has been constantly expanding from a densely packed single point, one of this theory's most important predictions is that the early universe consisted of just two hydrogen and helium, in a ratio of three to one. And this prediction can also be tested with light.

What light can teach us...

 because we actually know quite a lot about the universe at this stage. We know above all that it was extremely simple. It consisted of huge clouds of hydrogen and helium atoms, and they have no structure. They're really a sort of cosmic mush. But that's not completely true.

The history of our world...

 and that hydrogen, that helium, then began to cook into the heavier elements. So the elements of life -- carbon, and oxygen and iron, all the elements that we need to make us up -- were cooked in those first generations of stars, which then ran out of fuel, exploded,

CERN's supercollider PIPE...

 in the three minutes that followed the birth of our universe. Eventually, clusters of atoms accumulated and formed stars. Within these stars, nuclear reactions fused light elements, such as hydrogen and helium, to form heavier elements, such as carbon and oxygen.

The law of conservation...

 scientists are able to determine the relative abundance of elements, such as hydrogen and helium, within the universe. But cosmic rays may provide even more fascinating information about the fabric of the universe itself.

How cosmic rays help us...

 the radiation era's last two stages, the protons and neutrons underwent a significant change. They fused and created nuclei. And in doing so, they created the first chemical element in the universe, helium.

Origins of the Universe...

 Rather, this giant planet may have a dense, liquid center surround by a worldwide ocean of hydrogen and helium gases. Jupiter's gassiest composition can be observed in its atmosphere. About 44 miles thick,

Jupiter 101 PIPE National...

 and the pattern of the ripples was imprinted into our universe as regions of slightly different density in the hydrogen and helium gas that formed shortly after the big bang

The Creation Of The...

 surrounded by a layer of clouds. These clouds, predominantly made of hydrogen and helium, include traces of methane, which give this ocean world its rich blue color.

Neptune 101 PIPE National...

 - Most people know helium as the lighter than air gas that fills our party balloons. But more importantly it's an irreplaceable element for science and industry.