- Discovered that the universe’s expansion is accelerating. It did this by measuring the cepheid variable stars, which are very bright, pulsating stars.
- Determined that the cause for the acceleration of the universe is assumed to be dark energy. Previously, it was thought that the expansion was slowing because of the influence of gravity.
- Determined the rate at which the universe is expanding.
- Is helping to refine the age of the universe and predict its future.
- Confirmed black holes. In the 1960s, there was a theory that there are black holes at the center of some galaxies. The Hubble has confirmed that theory and it is now theorized that all galaxies have black holes at their centers. A black hole is an area where nothing can escape. Space time is deformed because of a very dense mass and there is a point called the event horizon where anything gets sucked in, even light. It can be observed by its interaction with other matter.
- Jupiter had some pieces of a comet crash into it. From this, Hubble found out that Jupiter had large amounts of sulfur and ammonia. The telescope also discovered that the winds on Jupiter blow from its poles to its equator.
- The Hubble telescope has shown us that volcanic activity on Venus is slowing down.
- Now we know that dust storms of Mars are seasonal and that the temperature is cooling.
The definition of the Hubble telescope is a 94-inch diameter orbiting telescope that orbits 370 miles above the Earth's surface every 97 minutes.
Discoveries of the Hubble Telescope
An example of the Hubble telescope is the equipment that discovered that Saturn’s rings are only about 300 feet thick and they are 171,000 miles across.