Tag Archives: Space

A Day on Mercury – 60 Second Adventures in Astronomy (4/14)

60-Second Adventures in Astronomy. Number four: a Day on Mercury. No two planets act exactly the same whether it’s Jupiter spinning in only 10 hours, Venus spinning backwards or Uranus tilting to one side. But Mercury is particularly strange, it takes nearly 59 Earth days to rotate, which might make for a pretty long day… Read More »

The 1995 Hubble photo that changed astronomy

Since the Hubble Space Telescope went into orbit back in April 1990, it has sent back a ton of incredible photos. Each has its own story, but one of Hubble’s greatest images is this one, from 1995. This is a snapshot of nearly the entire history of the universe – and the first of its… Read More »

The Future of Astronomy Is Biology! | Dimitar Sasselov | TEDxNatick

Translator: Amanda Chu Reviewer: Peter van de Ven I’m an astronomer; I study stars and planets. Astronomy, from its ancient roots, has always been about stars, planets, galaxies – the cosmos as a whole. But what if I told you that the future of astronomy is biology? Yes, biology. Let’s see why. It is a… Read More »

How Gaia Changed Astronomy Forever | Space Time

The great advances in any science tend to come in sudden leaps April 25th of 2018 marks the beginning of just such a leap for much of astronomy. In the early hours of the morning the Gaia mission second data release dropped. Our understanding of our own galaxy will never be the same again. The… Read More »

5.3 Pulsars [Astronomy: State of the Art]

What’s left behind when a massive star collapses at the end of its life? In particular, when the core is massive enough that it can overcome electron degeneracy pressure, so the endpoint is not a white dwarf. The disruptive explosion leading to a supernova—in principle—could detonate the entire material obliterating the star, and sending it… Read More »

What’s ahead for astronomy in 2017? | Science News

[music] Hi, I’m Christopher Crockett, and I’m the astronomy writer at Science News. In 2017, we’ll be learning about new things in our own solar system to the center of the galaxy out to galaxies billions of light-years away. One of the things I’m looking forward to in 2017 is astronomers figuring out where fast… Read More »

Kepler’s Third Law of Motion (Astronomy)

Kepler’s First and Second Laws of planetary motion appeared in their earliest form in 1609, in the book Astronomia Nova. They state that: 1) Planets move in elliptical orbits about the Sun, which sits at one focus. and 2) a planet’s orbital velocity varies over the course of one revolution such that a line drawn… Read More »

This Backyard Astronomer Has Discovered 300 Asteroids and Counting

(observatory roof clunking open) – My biggest thing that I like to do is discover stuff. And not necessarily things that have already been discovered. I really like to discover things that haven’t been discovered yet. If you take an asteroid and you discover an asteroid, for example, even though there’s half a million of… Read More »

Introduction to the Solar System: Crash Course Astronomy #9

The Solar System is the name we give to our local cosmic backyard. A better way to think of it is all the stuff held sway by the Sun’s gravity: The Sun itself, planets, moons, asteroids, comets, dust, and very thin gas. If you took a step back — well, a few trillion steps back… Read More »

NASA | LRO’s Diviner Takes the Moon’s Temperature During Dec. 10, 2011 Eclipse

[silence] [silence, followed by music] [music] Narrator: As the moon orbits the Earth, it occasionally passes through the Earth’s shadow, resulting in a spectacular change in the moon’s appearance for a short time. This event is called a lunar eclipse, and it happens at least twice a year, providing a rare show that’s worth staying… Read More »