Astronomy podcast for beginners
Astronomers generally focus on space.
They may specialize in a particular part of it, such as planets, stars, or moons, but they're interested in the entire universe.
Astrophysicists focus solely on the physics of space and how elements of it interact with one another..
Astronomy podcast for beginners
Astronomy is the study of everything in the universe beyond Earth's atmosphere.
That includes objects we can see with our naked eyes, like the Sun , the Moon , the planets, and the stars .
It also includes objects we can only see with telescopes or other instruments, like faraway galaxies and tiny particles..
Astronomy podcast for beginners
StarTalk is a podcast on science, comedy, and popular culture hosted by astrophysicist Neil deGrasse Tyson, with various comic and celebrity co-hosts and frequent guests from the worlds of science and entertainment..
Astronomy podcast for beginners
Stream NASA Listen to podcast episodes online for free on SoundCloud..
How do they know how far away stars are?
The Parallax Angle -- How Astronomers Use Angular Measurement to Compute Distances in Space.
The parallax angle is the angle between the Earth at one time of year, and the Earth six months later, as measured from a nearby star.
Astronomers use this angle to find the distance from the Earth to that star..
How old is the universe debate?
Astronomers have used powerful telescopes high in the Atacama desert to evaluate estimates of the age of the universe.
The latest estimate is that our universe is about 13.77 billion years old, plus or minus about 40 million years..
Podcast about space theories
StarTalk is a podcast on science, comedy, and popular culture hosted by astrophysicist Neil deGrasse Tyson, with various comic and celebrity co-hosts and frequent guests from the worlds of science and entertainment..