Gravity is always pulling you down, but there are places in the solar system where gravity balances out. These are called Lagrange points and space agencies use them as stable places to put spacecraft
Oct 1st: Lagrange Points
Tag: astronomy cast
Sep 24th: Rockets
To move around in space, you need some kind of propulsion system. And for now, that means rockets. Let’s learn the underlying science of rockets, and how they work.
Sep 21st: Astronomy Cast’s 500th Episode Celebration!
What happened to the Opportunity rover? How about 21P/Giacobini-Zinner? more at #365DaysofAstro. And lets celebrate Astronomy Cast’s 500th Episode!
Sept 17th: Astronomy Cast 500th Episodes Live Celebration
Celebration of 500 episodes of astronomy cast and what to do next
Sep 10th: What is the Proposed Hubble-Lemaître Law?
We started out Astronomy Cast with the controversial decision to de-planet Pluto. And here we are, more than a decade later, at the brink of recording our 500th episode when another big decision is coming down from the IAU: Whose name goes on the concept that our Universe is expanding: Hubble or Lemaître?
Aug 27th: The Life of Other Stars
Let’s start the clock again, and see what happens to the smallest stars in the Universe; and what happens to the largest.
Aug 20th: The Search for Water on Mars
The Search for Water on Mars and how this ties into the search for life on the Red Planet. #365DaysOfAstro
Aug 13th: How Old is the Universe?
This week we look at age of the Universe. How old is the Universe, and how do we know?
Aug 6th: Magnetism Everywhere
Magnetic fields are everywhere and we’re talking about the gigantic magnetic fields that surround planets, stars, galaxies and some of the most exotic objects in the Universe.
Jul 30th: Gravitational Lensing
The most powerful telescopes in the Universe are completely natural, and the size of a galaxy cluster. When you use the gravity of a galaxy as a lens, you can peer right back to the edges of the observable Universe.