Science
How do we see things in space? TRAPPIST-1: "Presenting humanity with many opportunities to study terrestrial worlds beyond our solar system" (TRAPPIST-1) (http://www.trappist.one) TRAPPIST-1 (Wikipedia) (https://en.wikipedia.org/wiki/TRAPPIST-1) What is astronomy? (Space.com) (http://www.space.com/16014-astronomy.html) How do (visual) telescopes work? (How Stuff Works, Science) (http://science.howstuffworks.com/telescope.htm/printable) Galileo Galilei (Wikipedia) (https://en.wikipedia.org/wiki/Galileo_Galilei) Four of Jupiter's 67 moons, Io, Europa, Ganymede & Callisto, are known as the 'Galilean' moons (Wikipedia) (https://en.wikipedia.org/wiki/Galileo_Galilei#Jupiter.27s_moons) Galilieo got in big trouble from the church for saying that the Earth was not the centre of everything (Wikipedia) (https://en.wikipedia.org/wiki/Galileo_Galilei#Controversy_over_heliocentrism) Galileo gives an eternal bird to the church: His middle finger is displayed in a jar in Florence (Wikipedia) (https://en.wikipedia.org/wiki/Galileo_Galilei#/media/File:Dito_della_mano_destra_di_galileo,_in_teca_del_1737.JPG) The Galilean moons have regular orbits, but most of Jupiter's moons have orbits that are a bit random (Wikipedia) (https://en.wikipedia.org/wiki/Moons_of_Jupiter#Regular_satellites) The electromagnetic spectrum (Cosmos) (http://astronomy.swin.edu.au/cosmos/E/Electromagnetic+Spectrum) The electromagnetic spectrum & telescopes (NASA) (https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum1.html) It takes more than one kind of telescope to see the light (NASA) (https://science.nasa.gov/science-news/science-at-nasa/1999/features/ast20apr99_1) Observatories across the electromagnetic spectrum (NASA) (https://imagine.gsfc.nasa.gov/science/toolbox/emspectrum_observatories1.html) A list of all the space telescopes (Wikipedia) (https://en.wikipedia.org/wiki/List_of_space_telescopes) A list of the oldest observatories on Earth (Wikipedia) (https://en.wikipedia.org/wiki/Observatory#Oldest_astronomical_observatories) How do telescopes let us see so far into space? (BBC, Science) (http://www.bbc.co.uk/science/0/20937803) How scientists get data from the universe, process it, archive it & analyse it (NASA) (https://imagine.gsfc.nasa.gov/science/data/data.html) Hubble Space Telescope: Detects near infrared, visible & ultraviolet light (Wikipedia) (https://en.wikipedia.org/wiki/Hubble_Space_Telescope) Hubble Site (NASA) (http://hubblesite.org) A fresh take on the Horsehead Nebula (Hubble Space Telescope, ESA) (https://www.spacetelescope.org/news/heic1307/) Making images out of different kinds of raw data from space (NASA) (https://imagine.gsfc.nasa.gov/science/toolbox/images1.html) The Hertzsprung-Russell diagram (CSIRO, Australia Telescope National Facility) (http://www.atnf.csiro.au/outreach/education/senior/astrophysics/stellarevolution_hrintro.html) The Hertzsprung-Russell diagram (Cosmos) (http://astronomy.swin.edu.au/cosmos/H/Hertzsprung-Russell+Diagram) Main sequence stars (CSIRO, Australia Telescope National Facility) (http://www.atnf.csiro.au/outreach/education/senior/astrophysics/stellarevolution_mainsequence.html) Main sequence lifetime (Cosmos) (http://astronomy.swin.edu.au/cosmos/M/Main+Sequence+Lifetime) Detecting other worlds: The wobble method (SETI) (http://archive.seti.org/seti/seti-science/detecting_new/wobble_method.php) How can you tell between different types of stellar wobble? (The Naked Scientists) (https://www.thenakedscientists.com/articles/questions/how-can-you-tell-between-different-types-stellar-wobble) "The Sun is a G-type main-sequence star (G2V) based on its spectral class, & is informally referred to as a yellow dwarf" (Wikipedia) (https://en.wikipedia.org/wiki/Sun) Spectra & what they can tell us (NASA) (https://imagine.gsfc.nasa.gov/science/toolbox/spectra1.html) Astronomical spectroscopy (Wikipedia) (https://en.wikipedia.org/wiki/Astronomical_spectroscopy) What is a stellar nursery? (wiseGEEK) (http://www.wisegeek.com/what-is-a-stellar-nursery.htm) An image of a stellar nursery (NASA) (https://www.nasa.gov/multimedia/imagegallery/image_feature_643.html) ‘Space beacons’ reveal the Milky Way’s very old core (Space Answers) (https://www.spaceanswers.com/news/space-beacons-reveal-the-milky-ways-ancient-core1/) A timeline of the TRAPPIST-1 discoveries & the telescopes involved (TRAPPIST-1) (http://www.trappist.one/#timeline) The James Webb telescope (NASA) (https://jwst.nasa.gov) Kepler Space Telescope: Exoplanet hunter (Space.com) (http://www.space.com/24903-kepler-space-telescope.html) Belgian astronomers celebrated the discovery of the TRAPPIST-1 exoplanet system with Trappist beer (Wikipedia) (https://en.wikipedia.org/wiki/TRAPPIST-1#Discovery_and_nomenclature) 5 ways to find a planet (NASA) (https://exoplanets.nasa.gov/interactable/11/) The planets orbiting TRAPPIST-1 were discovered using the 'transit method' of detection (TRAPPIST-1) (http://www.trappist.one/#timeline) The planets orbiting TRAPPIST-1 are quite close to the star & three are in the habitable zone (Wikipedia) (https://en.wikipedia.org/wiki/TRAPPIST-1#Planetary_system) What is the Goldilocks Zone & why does it matter in the search for ET? (ABC, Australia) (http://www.abc.net.au/news/science/2016-02-22/goldilocks-zones-habitable-zone-astrobiology-exoplanets/6907836) Search for extraterrestrial intelligence (SETI Institute) (http://www.seti.org) SETI has tried to see if any radio signals are coming from TRAPPIST-1 (Wikipedia) (https://en.wikipedia.org/wiki/TRAPPIST-1#Radio_signal_search) Where is the search for extraterrestrial life up to? (ABC, Australia) (http://www.abc.net.au/news/science/2016-10-10/extraterrestrial-life-where-is-the-search-up-to/7885364) The billion-year technology gap: Could one exist? (The Daily Galaxy) (http://www.dailygalaxy.com/my_weblog/2009/11/the-billionyear-technology-gap-could-one-exist-the-weekend-feature.html) Advanced alien civilizations rare or absent in the local universe (Phys.org) (https://phys.org/news/2015-09-advanced-alien-civilizations-rare-absent.html) The hydrogen 21 cm line (HyperPhysics) (http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/h21.html) A proper paper about 21cm intensity mapping: "Using the 21 cm line, observed all‐sky & across the redshift range from 0 to 5, the large scale structure of the universe can be mapped in three dimensions" (Cornell University Library, Peterson JB et al.) (https://arxiv.org/pdf/0902.3091.pdf) The Very Large Telescope (Wikipedia) (https://en.wikipedia.org/wiki/Very_Large_Telescope) The Extremely Large Telescope (Wikipedia) (https://en.wikipedia.org/wiki/Extremely_large_telescope) The Overwhelmingly Large Telescope (Wikipedia) (https://en.wikipedia.org/wiki/Overwhelmingly_Large_Telescope) The Deep Space Network (NASA, JPL) (https://www.jpl.nasa.gov/deepspace/) Canberra has several telescopes that are part of the Deep Space Network (NASA) (http://www.cdscc.nasa.gov) The Square Kilometre Array Telescope (SKA, Australia) (http://www.ska.gov.au/Pages/default.aspx) SKA telescope to generate more data than entire internet in 2020 (Computer World) (http://www.computerworld.com.au/article/392735/ska_telescope_generate_more_data_than_entire_internet_2020/) SKA amazing facts (SKA) (https://skatelescope.org/amazingfacts/) "Astrology is the mass cultural delusion that the apparent position of the sun & planets relative to arbitrarily defined "star signs" at the time of your birth somehow affects your personality & future" (Rational Wiki) (http://rationalwiki.org/wiki/Astrology) Astrology is still bullshit & the universe doesn't care about you (Gizmodo) (http://gizmodo.com/5733709/astrology-is-still-bullshit-and-the-universe-doesnt-care-about-you) Flecks of extraterrestrial dust, all over the roof: An amazing article about a Norwegian Jazz musician who collects space dust (The New York Times) (https://www.nytimes.com/2017/03/10/science/space-dust-on-earth.html?em_pos=large&emc=edit_sc_20170314&nl=science-times&nlid=74390037&ref=headline&te=1&mtrref=undefined) Where are you from? Send us a postcard! Strange Attractor, c/ PO Box 9, Fitzroy, VIC 3065, Australia Corrections TRAPPIST-1 is thought to be an ultra-cool dwarf, not a brown dwarf (Wikipedia) (https://en.wikipedia.org/wiki/TRAPPIST-1#Stellar_characteristics) The James Webb telescope will detect infrared energy, not radio (NASA) (https://jwst.nasa.gov/about.html) Johnny meant 'wavelength' when talking about the hydrogen 21 cm line, not 'frequency' (HyperPhysics) (http://hyperphysics.phy-astr.gsu.edu/hbase/quantum/h21.html) Check out our new Fireside home Find aaaaall the great episodes & show notes & handy instructions should you feel like leaving us a cheeky iTunes review...go on...we know you want to! (http://strangeattractor.random.productions) Image credit: Iván Éder