Sentences with phrase «big galaxies such»

Many had expected to see big, fuzzy clouds of stars, which presumably contracted to form big galaxies such as the Milky Way.

Not exact matches

Because this survey pertains to such a small piece of the sky, the implications are staggering: if the region of sky demarked by the «bowl» of the Big Dipper were surveyed to the same depth, it would contain about 32 million galaxies!»

The leading candidate is a WIMP, or weakly - interacting massive particle, that was produced in the big bang and has been clumping up and seeding structures such as galaxies ever since.

This sounds reasonable at first, but host galaxies are 10 billion times bigger than the central black holes; it should be difficult for two objects of such vastly different scales to directly affect each other.

The telescope has helped researchers detect such clusters by exploiting a phenomenon known as the Sunyaev - Zel «dovich effect, which causes massive galaxy clusters to leave an impression on the cosmic microwave background: a faint, universe - spanning glow of light left over from the big bang.

Astronomers have long debated whether such early galaxies could have provided enough radiation to warm the hydrogen that cooled soon after the big bang.

According to standard physics, cosmic rays created outside our galaxy with energies greater than about 1020 electronvolts (eV) should not reach Earth at those energies: as they travel over such vast regions of space they should lose energy because of collisions with photons of the cosmic microwave background (CMB), the radiation left over from the big bang.

We spend time contemplating big things like galaxies and small things like atoms, and the knowledge we generate helps us answer basic questions, such as: Who are we?

If such winds didn't exist or were less powerful, we would see far more stars in big galaxies than we actually do.»

The fact that several such pristine galaxies turn out to have a small, still - expanding black hole at their core suggests that black holes can grow to intermediate size without mergers, but then need to pool their resources to get much bigger.

The big bang theory can not explain how such distant and massive galaxy concentrations could have formed so quickly that their light had over 13.0 - billion years to travel to planet Earth.5, 52, 53

Astronomers worried that such a humongous structure, 80 percent bigger than the famous Great Wall of galaxies first discerned in a sky survey 2 decades ago, might violate the accepted model of galaxy evolution.»

«Such galaxies, which have remained dormant for most of their lives, are believed to contain the chemical elements forged a few minutes after the Big Bang.By measuring the relative number of hydrogen and helium atoms in the Little Cub we might be able to learn more about what made up the Universe in the moments after it began 13.7 billion years ago,» Cooke added.

Such ancient objects, like high - redshift galaxies and quasars, can give clues about what happened just after the Big Bang.