The Gaia mission, launched by the European Space Agency, has completed a decade of groundbreaking astronomical observations, collecting over three trillion data points on two billion stars and ...
So how well do you know the Milky Way? Let's test your knowledge of our galaxy's size, age, speed and more with the 15 questions below. Remember to log in to put your name on the leaderboard and ...
On February 4, 1995, astronauts aboard the space shuttle Discovery launched an itty bitty satellite called an Orbital Debris Calibration Sphere into orbit around the Earth. The satellite measured just ...
The European satellite, launched in 2013, has exhausted its gas reserves and is preparing to return to a stable orbit before being 'passivated.' But while the data collection that revolutionized ...
For older kids who want to learn about the solar system, we highly recommend the Planet Earth and Moon in Orbit set ... this wall art of the Milky Way looks absolutely stunning no matter where ...