Dark Nebula

Un-Dark Galaxy Baffles Scientists

Un-dark galaxy baffles scientists, according to reports in ScienceDaily and BBC News 28 March 2018, and ABC News and National Geographic 29 March 2018, and Nature, doi: 10.1038/nature25676, 29 March 2018. Astronomers have been studying an unusually faint and diffuse galaxy named NGC1052-DF2. It is similar in size to the Milky Way galaxy but has […]

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Galaxy

Galaxy Stuff Missing

Galaxy stuff missing, as reported in Science (AAAS) News and ScienceDaily 1 February 2018 and Science, doi: 10.1126/science.aao1858, 2 February 2018. Large galaxies, such as our Milky Way galaxy have many dwarf galaxies orbiting around them. Astronomers have studied the dwarf galaxies around a large galaxy named Centaurus A and found they were orbiting in […]

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Space Problem

Universe Expansion Problem

Universe expansion problem reported in BBC News 11 January 2018, and EarthSky 11 March 2018. Two different groups of astronomers using two different, but well tested techniques, have come up with two different calculations of the rate at which the universe is believed to be expanding, a number referred to as the Hubble Constant. Adam […]

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Mars Streaks are Sand

Mars streaks are sand, not water, reports NASA News 21 November 2017, Science (AAAS) News 22 November 2017, Astronomy Now 26 November 2017, and Nature Geoscience doi:10.1038/s41561-017-0012-5, 20 November 2017. Dark streaks on crater slopes that came and went with the passing seasons have been presented as evidence of liquid water flowing on the surface […]

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Star Count May Triple

Star count may triple, according to articles in ScienceDaily and Nature 1 December 2010. Astronomers have been studying nearby elliptical galaxies using the Keck Observatory, Hawaii, to look for signs of red dwarfs. These are small dim stars that up until now, astronomers had not detected in other galaxies. They found there are about 20 […]

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Soaking Wet Mars

“Soaking wet” Mars excites scientists, according to BBC news, Nature Science Update and press releases from the Mars Exploration Rover Mission, 2, 5 & 18 March 2004. Rock formations at both sites currently being explored by robots on Mars appear to have the right physical structure and chemistry for being formed in wet conditions. Some […]

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Sharp Edge Ring Mystery

Sharp edge ring mystery reported in New Scientist 10 July 2004, p10. Photos from the Cassini probe, currently exploring Saturn and its rings, have revealed “a host of ringlets with unexpected sharp edges – a mystery, as collisions (over billions of years) between the particles should smooth out the edges.” Editorial Comment: The solution to […]

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Seti Not Yeti

Seti not Yeti, as scientists admit to no results still in their search for intelligent aliens, reports Richard A. Kerr, Science, vol. 303, p1133, 20 February 2004. “It was a good try, the best of its kind ever, but the Phoenix Project came up empty.’We found nothing,’ says radio astronomer Frank Drake, founder of the […]

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Sand, Not Water, Flowed on Mars

Sand, not water, flowed on Mars, suggests an article in Nature Science Update, 25 May 2004. Four years ago the Mars Global Surveyor (a spacecraft orbiting Mars) took photos of formations resembling recently dried up river beds. These led scientists to suggest they were formed by water venting from underground reservoirs. However, Troy Shinbot and […]

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Salt Water Flows on Mars

Salt water flows on Mars, suggest scientists in reports from ScienceNOW and NASA Science News 4 August 2011. Scientists analysing images from the Mars Reconnaissance Orbiter, a satellite orbiting Mars, have found over a thousand dark streaks that seem to grow and shrink with the passing seasons. The streaks are on the facing slopes on […]

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