Temperature is a measurement of the speed at which particles are moving, and heat is how much energy the particles of an object have. So in a truly empty region space, there would be no particles ...

Although temperatures plummet on the dark side of the moon and the shadowy craters of Pluto, those locales look balmy compared with the Boomerang Nebula. About 5,000 light-years away, this star system ...

Light, fast particles are known as hot dark matter; heavy, slow ones are cold dark matter; and warm dark matter falls in between. In this way of seeing things, WIMPs are cold, sterile neutrinos are ...

Professor Tom Kitching, from UCL's Mullard Space Science Laboratory, is one of four science co-ordinators for the European Space Agency-led Euclid mission. He says the data it brings back has the ...

That means that dark energy seems to be a property of space itself, which is why it is also sometimes known as the energy of the vacuum. “If you get more space, you get more dark energy.

Humans are not necessarily destined to live in a cold, empty cosmos, because dark energy might behave differently in the far future. Only continued research will uncover our ultimate fate. CATEGORIES ...

Undergirding the structure of the universe. Dark matter isn’t just floating around filling up empty space. Importantly, it is found in clumps and structures, similar to ordinary matter.

Cosmologist Katie Mack breaks down what the latest findings about dark energy mean for our universe’s future. Either way, it won’t be happy. Dark Energy Spectroscopic Instrument (DESI ...

Our current cosmological model—known as lambda cold dark matter, or ΛCDM—relies on hypothesized dark energy to explain the accelerating expansion of the universe. However, one competing ...

One of the biggest mysteries in science – dark energy – doesn't actually exist, according to researchers looking to solve the riddle of how the Universe is expanding. For the past 100 years ...