Snippets

compiled by Arlene & David Kaplan

-NYT

Beyond the Milky Way, a Galactic Wall
Astronomers have discovered a vast assemblage of galaxies hidden behind our own, in the “zone of avoidance.” The South Pole Wall, as it is known, consists of thousands of galaxies — beehives of trillions of stars and dark worlds, as well as dust and gas — aligned in a curtain arcing across at least 700 million light-years of space. …more

-BBC

Core of a gas planet seen for the first time
Astronomers have found a previously unseen type of object circling a distant star. It could be the core of a gas world like Jupiter, offering an unprecedented glimpse inside one of these giant planets. Giant planets like Jupiter and Saturn have a solid planetary core beneath a thick envelope of hydrogen and helium gas…more

-BBC

Mystery over monster star’s vanishing act
Astronomers have been baffled by the disappearance of a massive star they had been observing. They now wonder whether the distant object collapsed to form a black hole without exploding in a supernova. If correct, it would be the first example of such a huge stellar object coming to the end of its life in this manner…more

-NASA

How did scientists determine our location within the Milky Way galaxy
–in other words, how do we know that our solar system is in the arm of a spiral galaxy, far from the galaxy’s center? Laurence A. Marschall in the department of physics at Gettysburg College in Gettysburg, Pa., answers:
“There is no short answer to this question…more

-BBC

Solar Orbiter: Closest ever pictures taken of the Sun
New pictures of the Sun taken just 77 million km (48 million miles) from its surface are the closest ever acquired by cameras. They come from the European Space Agency’s Solar Orbiter (SolO) probe, which was launched earlier this year. Among the UK-assembled craft’s novel insights are views of mini-flares dubbed “camp fires”…more

-BBC

Nuclear blast sends star hurtling across galaxy
A star has been sent hurtling across the galaxy after undergoing a partial supernova, astronomers say. A supernova is a powerful explosion that occurs when some stars reach the ends of their lives; in this case, the blast was not sufficient to destroy it. Instead, it sent the star hurtling through space at 900,000 km/hr…more

-BBC

Desert telescope takes aim at ageing our Universe
Another telescope has entered the debate about the age and expansion rate of the Universe. This topic has recently become the subject of an energetic to and fro among scientists using different astronomical facilities and techniques. The new entrant is the Atacama Cosmology Telescope in Chile. It’s been studying the “oldest light” on the sky…more

-BBC

‘Hope’ and ambition drive UAE’s Mars mission
The United Arab Emirates will send a satellite to Mars in the coming days to study its weather and climate. Hope, as the 1.3-tonne probe is called, is launching on an H-2A rocket from Japan’s remote Tanegashima spaceport. The 500-million-km journey should see the robotic craft arrive in…more

This entry was posted in Mid-summer 2020, Sidereal Times and tagged , . Bookmark the permalink.

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