With their billions of stars, why don’t these giant structures light up the entirety of space?
If you ran faster than the speed of light, would you cast a shadow?
In this hypothetic question, what happens to your shadow when sprinting at inhuman speeds?
If you put all of the stars in the night sky together, how bright would Earth’s sky be?
What would happen if a wave of a magic wand put all the stars together in the night sky?
Gamma-ray telescope gets ready for prime time
Gamma rays are known to be produced by some of the most energetic objects in the universe, including supernova explosions, pulsars and around black holes
Where did the first particles of light come from?
The very first particles of light came from somewhere. We find out where
Largest galaxies were aligned ten billion years ago
Ancient light from the distant structures can tell us more about the early universe
Hubble discovers details about black hole’s last meal
NASA’s space telescope has found that the black hole ate its last big meal about 6 million years ago
Space telescope ‘hears’ stellar heartbeat from a planetary companion
“Just in time for Valentine’s Day, we have discovered the first example of a planet that seems to be causing a heartbeat-like behaviour in its host star”
Large numbers of dwarf galaxies discovered in the early universe
The tiny structures could reveal important details about a productive period of star formation in the cosmos billions of years ago
Hot cocoon surrounding newborn star spotted for the first time
The discovery marks the first important step for observational studies of extragalactic hot molecular cores and challenges the hidden chemical diversity of our universe
Hunt for dark matter expands thanks to NASA space telescope
Using six or more years of data from NASA’s Fermi Gamma-ray Space Telescope, the search for the elusive material has been broadened with some novel approaches
Juno Update: Spacecraft enters Jupiter’s magnetic field
The craft has made it to the planet’s magnetosphere, where the movement of particles in space is controlled by what’s going on inside the gas giant
Planetary nebulae get much more meaningful physical appearance
A way of estimating more accurate distances to the thousands of planetary nebulae dispersed across our galaxy has been announced by a team of three astronomers
Space telescopes capture black hole belching a massive flare
The strange behaviour of black holes has become somewhat less mysterious recently, according to NASA’s Swift spacecraft and NuSTAR satellite
Why do binoculars need prisms?
Prisms are crucial for a good pair of binoculars. We find out why
Five amazing facts about hot Jupiters
An extremely hot and very big class of exoplanet, here’s some facts about hot Jupiters
What will NASA’s starshade help astronomers to achieve?
We take a look at why astronomers are keen for the launch of the starshade
When is the best time to observe zodiacal light?
We take a look at when the best time is to see this strange phenomenon
How do telescopes work?
Learn about the incredible properties of light in Cosmos: A Space Time Odyssey
We’ve already invented time travel
Learn more about the time machines that exist on Earth with Cosmos: A Space Time Odyssey