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Tuesday, May 17, 2022

black holes

BLACK HOLES NEWS

Massive black hole might have spontaneously 'flipped' its magnetic field

May 10, 2022 6:30 pm

Magnetic reversals are likely to be common events in the cosmos, with geological records showing the Earth's field unpredictably reversing a few times every million years.

Astronomers discovered eight new 'echoing' black holes in the milky way

May 05, 2022 4:07 pm

As a black hole pulls in gas and dust from an orbiting star, it can give off bursts of X-ray light that bounce and echo off the gas spiralling into it and briefly illuminating the black hole’s surroundings.

Astronomers observe gravitational waves giving high-speed kick to black hole

April 27, 2022 11:48 am

The newly-formed black hole was launched at that high speed by gravitational waves, which are ripples in space-time caused by massive objects moving with high accelerations.

Search for life on other worlds tops astronomy to-do list

November 05, 2021 7:22 pm

The latest report recommends that NASA create a new office to oversee space observatories and overlapping missions in the coming decades.

Express Science Quiz: On Black Holes

August 27, 2021 4:31 pm

Last month, researchers saw light bending and X-ray echoes from behind a supermassive black hole.

Team led by Indian scientists finds X-ray signature of boundary around black holes

September 22, 2020 8:14 pm

While definitive proof of the existence of such objects is a holy grail of modern physics and astronomy, they said only one supermassive black hole with the mass more than six billion times the mass of the Sun has so far been imaged using the surrounding radiation in radio wavelengths.

Gravitational waves detected from black hole collision event 800 million years ago

June 23, 2020 10:41 pm

The gravitational signal from this merger event travelled for 800 million years through the universe and arrived at the network of two advanced-LIGO detectors – at Hanford, Washington and Livingston, Louisiana, USA and the advanced-Virgo detector in Cascina, Italy, in the wee hours of August 15 2019, just past 2.40 am IST.

Gravitational waves from unequal mass black holes detected

April 21, 2020 10:47 am

Named GW190412, the merger was collectively detected on April 19, last year. The highly-sensitive signals were detected using Laser Interferometer Gravitational wave Observatory (LIGO) and Virgo, located in the US and Italy, respectively.

Explained: How a tiny wiggle in the young universe gave birth to black holes

April 14, 2020 7:34 pm

According to the scientists, as time passes, this uniform energy prevailing in the Inflation Field wanes out. As a result, the universe resumes its normal decelerating rate.

Astronomers discover 83 supermassive black holes

March 15, 2019 12:59 pm

Astronomers have discovered 83 quasars powered by supermassive black holes 13 billion light-years away from the Earth, from a time when the universe was less than 10 per cent of its present age.

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