Tag Archives: stars

The planet with two suns

Kepled 16b is a planet with two suns. Such a planet is called circumbinary and it located at 200 light-years from us. Kepler 16b is a big planet and orbits the tow suns, which in turn orbit each other at close proximity. Kepler 16 is the system. In it Kepler 16A is the big star, […]

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You wont believe: the smallest possible star is just a bit bigger than Jupiter

It is said that Jupiter is a failed star. It is so massive that, if it were a couple of times more massive, it would have become a star. Stars can be way smaller than our Sun. For example, theoretically, a red dwarf star has only about 7.5% the mass of the Sun. Poxima Centauri, […]

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How do we study the stars?

Well, by analyzing the light that comes from them. We can measure their velocity, how big they are, what type they are, what are they made of. Light or electromagnetic waves are still our best instrument that we use to learn as much as we can about the Universe. How do we know what a […]

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How do astronomers know what elements are stars made of?

Michel van Biezen, from iLectureOnline, explains how do astronomers know what elements are in the atmospheres of exoplanets or in the atmospheres of stars. It all has to do with emission spectra and absorption spectrum. Basically, a heated and ionized gas will output light in certain wavelengths and that is called the emission spectrum. The […]

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Exploring the Universe: we’re made of star stuff

Crash Course Big History #2, with John Green, takes us from the time of Big Bang and up until now, and tells us that we are made of star stuff. Actually, Carl Sagan was the first to put it that way in these exact words. In any case, the heavy elements we see in our […]

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Black holes don’t just eat stars, they also help creating them

Black holes are notoriously known as things that simply eat up everything that comes into their path and that is true, but that is not the hole truth. Black holes, especially the quasar type, can be used as galactic lighthouses as they shine brighter than the entire galaxy they’re in. Some other black holes also […]

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Why do stars twinkle? Because of Earth’s atmosphere!

Hank Green, from SciShow, explains why we see the stars twinkling on the sky. It is because of the moving of the air that the stars’ light flickers and due to the fact that the light comes from a single point light source. In order words, the light is too dim and too narrow and […]

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Fly through 100 000 stars in 3D with Chrome Experiments

100 000 stars in one 3D app in your browser. All done with Chrome Experiments. You cannot zoom in and pan into each of those stars, but the 3D map is darn cool and also quite acucrate, to say the least. For future space travelers: start mapping your path now, it’s gonna be a long […]

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Awesome Symphony of Stars with Neil deGrasse Tyson [video]

If the thought of space exploration makes happy then this music video will too. It is the 12th Symphony of Stars – “Onward to the Edge” which features Neil deGrasse Tyson, Brian Cox, and Carolyn Porco having their voices electronically altered. John Boswell likes to play with electronic music and he gave us the above […]

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