Advertisements
2. Black Holes: The Monsters of the Universe
Have you heard of black holes? They're one of the most intriguing mysteries of the cosmos. A black hole is a region of space where gravity is so strong that nothing, not even light, can escape. They're like cosmic vacuum cleaners, sucking in everything around them.
The first image of a black hole was captured in 2019 by the Event Horizon Telescope.
Advertisements
See also
- Application to track any cell phone
- Application to Weigh Your Cattle
- Having a Radio Amateur
- Connect to free Wi-Fi networks!
- Top 5 Historical Events
- The 5 Best Adventure Travel Destinations
This black hole is at the center of the galaxy M87 and is immense, with a mass equivalent to 6.5 billion Suns! The image shows a glowing ring of superheated gas around a dark shadow: the event horizon, the point of no return.
This discovery was revolutionary because it confirmed many theories about black holes that had previously been mere mathematical predictions. Now we can see these cosmic monsters in action!
3. Gravitational Waves: The Dance of Space-Time
In 2015, scientists at the Laser Interferometer Gravitational-Wave Observatory (LIGO) made a discovery that opened a new window on the universe: they detected gravitational waves.
Advertisements
These waves are ripples in space-time, created by violent cosmic events, such as the collision of black holes.
Imagine throwing a stone into a lake and watching the ripples spread out. Gravitational waves are like those ripples, but in the fabric of the universe itself.
See also
- Application to track any cell phone
- Application to Weigh Your Cattle
- Having a Radio Amateur
- Connect to free Wi-Fi networks!
- Top 5 Historical Events
- The 5 Best Adventure Travel Destinations
The first detection occurred when two black holes merged more than a billion years ago, releasing a colossal amount of energy.
The detection of gravitational waves not only confirmed a prediction made by Albert Einstein more than 100 years ago, but also allows us to study cosmic events that were previously invisible.
We can now “listen” to the universe in a whole new way!
