Space

Earth's ancient magnetic field was significantly different than present day field, new work suggests

Earth's ancient magnetic field was significantly different than present day field, new work suggests

According to the latest work of Carnegie's Peter Driscoll, the ancient magnetic field was notably distinct in comparison to the present day field. The work suggested that it originated from different poles instead of the known two. The work has been published in Geophysical Research Letters.

Our planet generates a strong magnetic field expanding from the core out into space, shielding the atmosphere, drawing away dangerous high-energy particles heading from the Sun and the cosmos.

Hubble discovers brilliant star cluster in a nearby satellite galaxy

Hubble discovers brilliant star cluster in a nearby satellite galaxy

With the help of a new image of a satellite galaxy of the Milky Way, captured by the Hubble Space Telescope, NASA astronomers have discovered a previously unknown brilliant star cluster.

The new image shows a dazzling cluster of stars embedded in the Large Magellanic Cloud, a small galaxy located nearly 135,000 light-years away from the Milky Way. The newly discovered star cluster has been named NGC 1854. It is one of several hundred star clusters that the distant galaxy contains.

LIGO will detect up to 1,000 black hole collisions annually: astronomers predict

LIGO will detect up to 1,000 black hole collisions annually: astronomers predict

The Laser Interferometer Gravitational-wave Observatory (LIGO) will detect as many as 1,000 collisions and mergers of black holes annually once it attains full sensitivity sometime early next decade, astronomers have predicted.

The prediction, which recently published online in the journal Nature, is based on computer simulations of more than one billion evolving binary stars and information provided by the most recent astronomical & astrophysical observations.

Hubble Telescope confirms presence of dark vortex on Neptune

Hubble Telescope confirmed presence of dark vortex on Neptune

After using data from Hubble Telescope, astronomers have informed that an interesting spot detected on Neptune is a dark vortex. NASA's Hubble Space Telescope detected this high-pressure system when bright clouds pointed towards its existence.

According to astronomer Mike Wong, of the University of California at Berkeley, Dark vortex can travel through atmosphere like huge, lens-shaped gaseous mountains. Wong led the team that analyzed the Hubble’s data and confirmed presence of Dark vortex.

Neptune: first dark vortex for 21st century discovered

Neptune: first dark vortex for 21st century discovered

NASA’s Hubble Space Telescope has confirmed the presence of dark vortex on Neptune. The high-pressure system has been identified for the first time on Neptune in the 21st century. Astronomers came to know about the presence from bright clouds.

Astronomer Mike Wong, of the University of California at Berkeley, explained that dark vortices move through the atmosphere as massive, lens-shaped gaseous mountains. It also carries clouds that are akin to organic clouds that are in the shape of pancakes.

NASA's Hubble confirms existence of dark vortex on Neptune

NASA's Hubble confirms existence of dark vortex on Neptune

Neptune has a new spot, the first one to be spotted in the 21st century. The presence of the high-pressure system called dark vortex has been verified by NASA's Hubble Space Telescope, after shinny clouds hinted at its existence.

In a statement, research astronomer Mike Wong, of the University of California at Berkeley, said that dark vortices coast via the atmosphere like large, lens-shaped gaseous mountains. Wong was the head of the team that studied the data gathered by Hubble.

Astronomers document dormant black hole feasting on star

A First: Astronomers document dormant black hole feasting on star

Majority of the biggest black holes in the known universe are dormant. But certain times, a star wanders too close to a dormant black hole and does not mind feasting on it. Astronomers from the University of Maryland and the University of Michigan became the first to document such an act.

The researchers were able to document shredding of a star that was wandering very close to the dormant black hole. A method called Swift J1644+57 has been used to assess the event and could also help scientists know as to how massive black holes in the universe have grown to such a size.

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