What If You Lived on an Asteroid?

Would you ever want to buy your own planet? Even if it was just the size of a house? It could be the perfect vacation spot! Unbeatable privacy and breathtaking views, what more could you ask for? Well, before you go signing the mortgage, there are a few things you’d want to consider. Like, would a tiny planet have air for you to breathe?

Music:

Join our Patreon community and help make What If better:

Watch more what-if scenarios:
Planet Earth:
The Cosmos:
Technology:
Your Body:
Humanity:

Tweet us your what-if question to suggest an episode:

What If elsewhere:
Instagram:
Twitter:
Facebook:

What If comes in other languages!
What If in Spanish:
What If in Mandarin:

Suggest an episode (detailed):
T-shirts and merch:

Feedback and inquiries:

What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure — grounded in scientific theory — through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.

Read more

From Earth to the Universe Documentary – When We Left Earth – Voyage Through Space and Time

Our Milky Way Galaxy is teeming with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. Thousands of planets have been discovered, with thousands of more planet candidates identified. Several different planet-finding techniques have matured and contribute to our present knowledge of exoplanets. Each technique has different sensitivities that favor a planet-star separation and planet mass or size range limits. Because of the selection effect, none of the current exoplanet-finding techniques can find solar system copies. Astronomers have nonetheless found a completely unexpected diversity of exoplanets, a veritable “zoo” containing many astonishing planet types.

Read more

When We Left Earth Documentary – From Earth to the Universe – Voyage Through Space and Time

Our Milky Way Galaxy is teeming with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. Thousands of planets have been discovered, with thousands of more planet candidates identified. Several different planet-finding techniques have matured and contribute to our present knowledge of exoplanets. Each technique has different sensitivities that favor a planet-star separation and planet mass or size range limits. Because of the selection effect, none of the current exoplanet-finding techniques can find solar system copies. Astronomers have nonetheless found a completely unexpected diversity of exoplanets, a veritable “zoo” containing many astonishing planet types.

Read more

From Earth to the Universe – Voyage Through Space and Time – When We Left Earth Documentary

Our Milky Way Galaxy is teeming with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. Thousands of planets have been discovered, with thousands of more planet candidates identified. Several different planet-finding techniques have matured and contribute to our present knowledge of exoplanets. Each technique has different sensitivities that favor a planet-star separation and planet mass or size range limits. Because of the selection effect, none of the current exoplanet-finding techniques can find solar system copies. Astronomers have nonetheless found a completely unexpected diversity of exoplanets, a veritable “zoo” containing many astonishing planet types.

Read more

What is the Universe Made Of? Formula of the universe – Space Science Documentary

Composition. The Universe is composed almost completely of dark energy, dark matter, and ordinary matter. Other contents are electromagnetic radiation (estimated to constitute from 0.005% to close to 0.01% of the total mass-energy of the Universe) and antimatter.

Read more

Alien Planet Count Passes a Thousand Documentary – What are Exoplanets and How do We Find Them

Our Milky Way Galaxy is teeming with exoplanets—statistically speaking at least one for each of the hundreds of billions of stars in the galaxy. Thousands of planets have been discovered, with thousands of more planet candidates identified. Several different planet-finding techniques have matured and contribute to our present knowledge of exoplanets. Each technique has different sensitivities that favor a planet-star separation and planet mass or size range limits. Because of the selection effect, none of the current exoplanet-finding techniques can find solar system copies. Astronomers have nonetheless found a completely unexpected diversity of exoplanets, a veritable “zoo” containing many astonishing planet types.

Read more

Take A Journey Into The Center Of The Galaxy – How Do You Find Exoplanets?

We live in the Milky Way Galaxy, which is a collection of stars, gas, dust, and a supermassive black hole at it’s very center. Our Galaxy is a spiral galaxy, which are rotating structures that are flat (disk-like) like a DVD when looked upon edge-on. There is also a bulge in the middle that consists of mostly old stars. When you look at a spiral galaxy face-on, you can see beautiful spiral arms where stars are being born. Our solar system is in the Orion arm, and we are about 25,000 light years (2.5 X 10^17 miles) from the very center of the Galaxy.

Read more

Are We Actually Existing Inside A Black Hole? – How The Universe Works

A black hole cosmology is a cosmological model in which the observable universe is the interior of a black hole. Such models were originally proposed by theoretical physicist Raj Pathria, and concurrently by mathematician I. J. Good.

Any such model requires that the Hubble radius of the observable universe be equal to its Schwarzschild radius, that is, the product of its mass and the Schwarzschild proportionality constant. This is indeed known to be nearly the case; however, most cosmologists consider this close match a coincidence.

In the version as originally proposed by Pathria and Good, and studied more recently by, among others, Nikodem Popławski, the observable universe is the interior of a black hole existing as one of possibly many inside a larger parent universe, or multiverse.

Read more

How the Universe Works – Mystery of Space-time – Space Discovery Documentary

Our universe is so incredibly large that it becomes mind boggling to even attempt to convey its size and impact on reality. In fact, the universe and its mysteries appear to be so big that we have difficulty explaining where it goes and what resides beyond. For this moment in history, with monumental leaps in technology and understanding, we are still unsure of what this really means. The current viewpoint of existence is very much similar to how theorists envisioned planet Earth during middle age science. Like a flat plane extending past comprehension into a horizon which only telescopes gather a faint glimpse, these are mysteries of the universe.

Read more

How The Universe and Solar System was Formed? The Cosmos and the Solar System Documentary

Our Solar System, and all other star systems, form from a collapsing nebula. Often called stellar nurseries, nebulae are the birthplace of stars. They are made up of mostly hydrogen but also contain other matter like gases, dust, ice and rock. The gravity of the nebula pulls this matter into the centre, and the nebula experiences a gravitational collapse. If the compression raises the core temperature enough to reach thermonuclear fusion, the centre mass generates a protostar. This process takes about 10 million years.

Read more