Dec. 27, 2019

96: How Galaxies Get their Iconic Spirals

96: How Galaxies Get their Iconic Spirals

The astronomy and space science news podcast.

The astronomy and space science news podcast.

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*How galaxies get their iconic spirals

A new study claims galactic magnetic fields could play an important role in shaping the elegant sweeping arms of spiral galaxies like the Milky Way.


*Best ever pulsar maps and measurements

Astrophysicists are literally rewriting and redrawing the textbook on pulsars after obtaining the most precise and dependable measurements of both a pulsar's size and its mass, as well as the first-ever map of hot spots on its surface.

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*US Space Force is now a thing

U.S. President Donald Trump has formally signed the 2020 National Defense Authorization Act which officially establishes the United States Space Force as a new sixth branch of the American armed services.


*Third AMS spacewalk

Crew aboard the International Space Station have carried out the third of four planned spacewalks to service and upgrade AMS-02 – the Alpha Magnetic Spectrometer -- a device designed to capture cosmic rays and antimatter particles -- and to hunt for signs of mysterious dark matter.


*India spy satellite launch

India has launched a new spy satellite into orbit.


*Third flight in a row for same Falcon 9 rocket

SpaceX has successfully launched the new JCSAT-18/Kacific1 telecommunications satellite aboard a Falcon 9 rocket.

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*China’s space launch blitz continues

It may be the end of year holiday season but China’s space blitz is continuing with the launch of two more BeiDou-3 navigation satellites followed by a new Sino-Brazilian Earth observation satellite.


*Russia launches new navigation satellite

Russian space forces have launched a Soyuz-2.1b rocket carrying a Glonass-M navigation satellite into orbit.


*The Science Report

Now impossible for the Earth not to increase average temperatures by two degrees in coming years.

Research warns global warming makes it more difficult to predict year-to-year global climate variations.

Excess salty water discharge from the Sydney Desalination Plant is attracting lots of fish. 

Eating ultra-processed foods linked to an increase risk of developing type 2 diabetes.

How cats use marks on their ears to communicate.

SBS wins Australian Skeptic’s 2019 bent spoon award for the worst pseudo-scientific piffle of the year.


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