2024年2月5日 · What Exactly is Dark Energy? Right now, dark energy is just the name that astronomers gave to the mysterious “something” that is causing the universe to expand at an accelerated rate. Dark energy has been described by some as having the effect of a negative pressure that is pushing space outward.

2024年5月8日 · Dark matter and dark energy are mysterious substances that affect and shape the cosmos, and scientists are still trying to figure them out. Quick Facts In the 1970s, astronomer Vera Rubin confirmed the existence of dark matter by studying how individual galaxies rotated.

2024年2月8日 · Scientists have discovered that a mysterious pressure dubbed “dark energy” makes up about 68% of the total energy content of the cosmos, but so far we don’t know much more about it. Roman will help illuminate the dark energy puzzle by using multiple methods to explore how the universe has evolved throughout cosmic history.

2004年2月27日 · Hubble observations suggest the dark energy may be Einstein’s cosmological constant, an energy percolating out of the vacuum of the space between galaxies. The energy of the universe is dominated by empty space emitting …

2024年10月22日 · Dark matter and dark energy are mysterious substances that affect and shape the cosmos, and scientists are still trying to figure them out. The universe is made up of three components: normal or visible matter (5%), dark matter (27%), and dark energy (68%).

2024年10月22日 · Hubble made the key observations that led to the discovery of dark energy. Astronomers looked at a special kind of supernovae, called Type 1a, that give off a set amount of light when a certain type of star explodes.

To understand the mystery that is dark energy, you have to start at the beginning. Of the universe, that is.…

2016年9月20日 · In the early 1990s, scientists believed that gravity should be slowing the expansion of the universe. However, in 1998 observations of very distant supernovae showed that a long time ago the universe was actually expanding more slowly than it is today.

2024年1月2日 · Help illuminate the mystery of dark energy – the unknown force that is driving galaxies away from one another! Dark Energy Explorers are creating the largest and most detailed map yet of galaxies in the early universe.

2025年1月27日 · Using NASA’s Hubble Space Telescope and a new observing technique, astronomers have found that dark matter forms much smaller clumps than previously known. This result confirms one of the fundamental predictions of …