Astronomy News: The Latest News About Our Universe
The night sky captured human imagination since the beginning of our existence. The Universe gives us an insight as to how small we are. The Earth is a little blue marble when it comes to the scale of Stars and Galaxies. By studying the night sky, we have learned a lot about the Universe and its workings. Although it may seem calm, the Universe is a pretty violent place. It is good that we observe it from the safety of our planet. Here we present you with astronomy news that will intrigue you enough to take your sleep away.
LIGO Detects Gravitational Waves
The LIGO stands for (Laser Interferometer Gravitational-Wave Observatory). Here is an impressive piece of astronomy news about LIGO. It has detected gravitational waves just within a week of turning back on after a series of upgrades. The gravitational waves were from a black hole merger about 5 billion light-years away. LIGO made this discovery working together with the Virgo observatory in Italy. The black holes are speculated to have 30 times the mass of our Sun each.
The Universe Is Expanding Faster
This astronomy news will shock you. As per a report by astronomers using NASA’s Hubble Space Telescope, the Universe is expanding faster than expected. Its rate of expansion is five to nine percent faster. Adam Reiss of the Space Telescope Science Institute in Baltimore made this discovery. His team measured about 2,400 Cepheid (pulsating) stars in 19 galaxies. Then, they compared the distances between them with the current expansion rate of the Universe. Stretching of light is used to measure the expansion rate of the Universe. This phenomenon is known as redshift. They observed that at the current rate, the distance between celestial objects would double in 9.8 billion years.
The Moon May Have Brought Water
Planetologists of the University of Münster (Germany) have stated that the formation of the Moon has brought water to the Earth. The Moon formed when the Earth collided with a Mars-sized body named Theia. This event took place around 4.4 billion years ago. Until now, scientists assumed that Theia was born in the inner solar system. However, researchers have now shown that Theia delivered large quantities of water to Earth. They also showed that it came from the outer solar system where “wet” materials were abundant.
You must have become curious about the Universe and its workings after reading this astronomy news. The Universe has as many galaxies as there are grains of sand on Earth and as many secrets. We are yet to uncover all those puzzles and mysteries.