Astronomy news

Earth and Venus

Jovan sent in this link - www.skyandtelescope.com/astronomy-news/why-is-earth-magnetized-and-venus... ... why is Earth magnetised but Venus is not magnetised. It seems planetary scientists don't really know what to make of Venus, an admission in a popular magazine available for sale in newsagents. It is in many ways similar to the Earth in matters os size, mass, and rocky composition - but worlds apart in other ways. In atmosphere for example. Venus is cl;oud rich and dense. Surface temperatures are around 460 degrees celsius.

Weak Black Holes

It seems like black holes are not living up to the hype surrounding them as the magnetic field of one is much less powerful than envisioned in the various mainstream models of the phenomenon - see https://phys.org/print431844145.html ... we are told reality is catching up with black holes. In a paper in Science journal we learn they have significantly weaker magnetic fields than previously thought - code for, oh dear, measurement doesn't match theory. In fact the actual energy around a black hole is 400 times lower than entrenched in mainstream thinking.

Remodelling the Moon

Gary also sent this link at www.dailymail.co.uk/sciencetech/article-5144169/Earth-bombarded-small-pl... ... (see also https://phys.org/print431591593.html ). Collisions 'after' the formation of the Moon 'remodelled' early Earth - all by using modeling processes (see Naturegeoscience at www nature.com/articles/doi.10.1038/s41561-017-0022-3 ). Basically, they have used computer simulation fo show the Earth could have been transformed by small planet sized asteroids after the collision that created the Moon.

Robust Rebuttal

Physicists did not like Andre Meader's claim that dark matter and dark energy do not exist - see News item at www.sis-group.org.uk/news/empty-space.htm ... Maeder's argument was published in a series of papers in The Astrophysics Journal (during 2017) which did away with the necessity of factoring in hypothetical dark matter and dark energy, by the simple expedient of re-evaluating Einstein's concept of space time. Maeder found he could explain the expansion of the universe without dark energy.

Electrified Comets

At www.thunderbolts.info/wp/2017/11/21/history-of-electric-comet-theory-par... ... by Hannes Tager. This is the fourth in the series as the electric comet hypothesis is discussed in relation to what scientists over the last couple of centuries have been suggesting in contradiction of mainstream. This was not just in the 19th century, when the science was more open to a wider range of ideas but also in more recent years, even during the 20th century when the consensus dominated research and published articles.

Electrified Comets

At www.thunderbolts.info/wp/2017/11/21/history-of-electric-comet-theory-par... ... by Hannes Tager. This is the fourth in the series as the electric comet hypothesis is discussed in relation to what scientists over the last couple of centuries have been suggesting in contradiction of mainstream. This was not just in the 19th century, when the science was more open to a wider range of ideas but also in more recent years, even during the 20th century when the consensus dominated research and published articles.

Black Hole anomaly

A black hole anomaly - see https://phys.org/print431092750.html ... at the centre of our galaxy, in the immediate vicinity of the Milky Way's supermassive black hole, is a region of intense ultra violet light and x-ray radiation. This sort of activity is not thought to be conducive to new star formation - yet it is. New observations from ALMA (the Atacama Large Millimetre/submillimetre Array) have recorded eleven low mass stars forming perilously close to the smacking lips of the aforesaid black hole. They are just 3 light years away.

Speaking of Water

Speaking of water, scientists discover evidence of recent water flow on Mars - see https://phys.org/print430640889.html ... and the scientists in question come from a number of universities and countries but the lead author is from the Open University in Milton Keynes. They claim they have found evidence of recent glacial meltwater in spite of the widely held opinion that the climate on Mars is too cold to melt ice. The evidence in question revolves around the identify of an esker (what they interpret as an esker and it does look very much like it is).

Space Dust

Space dust can transport life between planets - see www.astronomy.com/news/2017/11/life-in-dust#.Whh0luAwbyE.mailto ... dust and debris form ancient asteroid collisions, and outflow from comets as well as interstellar dust is pervasive throughout the solar system. Space is not empty. It is full of dust and no doubt, bigger grains, from gravel to rocks. Roughly 220,000lbs (in old money) of space dust falls on to Earth each day, we are told. In deep space streams of cosmic dust can travel at speeds up to 44 miles per second.

Quirky Comet

At https://phys.org/print430554336.html ... when a comet passed through the inner solar system at the beginning of 2017 it presented astronomers with the chance to turn their telescopes in its direction - and analysis is said to have filled in some crucial details what ices in Jupiter family comets do. Ices in this instance mean frozen gases. The comet it seems did not meet expectations as it is described as quirky - or different from other comets. The team measured 9 gases released from the nucleus into the coma.