Musta aukko
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![Kuva 53 miljoonan valovuoden päässä maapallosta. Supermassiivinen musta aukko tunnetaan nimellä M87.]()
Tieteessä nähtiin sekä lupausta paremmasta että varoitusta tulevasta erityisesti ilmastonmuutoksen saralla 2010-luvulla. gravitaatioaallotKuva mustasta aukosta, Higgsin bosoni ja gravitaatioaallot – tällainen oli tieteen vuosikymmen
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Pakina: Uskottavimman someteorian mukaan Einsteinin erehdystä ei kehdata tunnustaa. UkkolaInstagram-krapulakuva ex-tyttöystävän leipomasta munkkirinkilästä? Ei, se on musta aukko
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![Näemme vain viisi prosenttia universumin massasta, loppu on tuntematonta ainetta tai energiaa.]()
Mitä tarkemmin maailmankaikkeutta katsotaan, sitä enemmän ihmeitä se paljastaa. avaruusPlaneetta, jolla tuulee 4800 metriä sekunnissa, lymyilevä energia – ja viisi muuta universumin ihmettä
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![Kuva esittää kahta mustaa aukkoa hetkeä ennen niiden törmäämistä ja sulautumista yhteen.]()
Toisen tapahtuman osallistujat olivat ensimmäiseen verrattuna suoranaisia höyhensarjalaisia. musta aukkoMustat aukot törmäsivät – tutkijat havaitsivat gravitaatioaaltoja toisen kerran
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![This image from Hubble’s Wide Field and Planetary Camera 2 (WFPC2) is likely the best of ancient and brilliant quasar 3C 273, which resides in a giant elliptical galaxy in the constellation of Virgo (The Virgin). Its light has taken some 2.5 billion years to reach us. Despite this great distance, it is still one of the closest quasars to our home. It was the first quasar ever to be identified, and was discovered in the early 1960s by astronomer Allan Sandage. The term quasar is an abbreviation of the phrase “quasi-stellar radio source”, as they appear to be star-like on the sky. In fact, quasars are the intensely powerful centres of distant, active galaxies, powered by a huge disc of particles surrounding a supermassive black hole. As material from this disc falls inwards, some quasars — including 3C 273 — have been observed to fire off super-fast jets into the surrounding space. In this picture, one of these jets appears as a cloudy streak, measuring some 200 000 light-years in length. Quasars are capable of emitting hundreds or even thousands of times the entire energy output of our galaxy, making them some of the most luminous and energetic objects in the entire Universe. Of these very bright objects, 3C 273 is the brightest in our skies. If it was located 30 light-years from our own planet — roughly seven times the distance between Earth and Proxima Centauri, the nearest star to us after the Sun — it would still appear as bright as the Sun in the sky. WFPC2 was installed on Hubble during shuttle mission STS-125. It is the size of a small piano and was capable of seeing images in the visible, near-ultraviolet, and near-infrared parts of the spectrum.]()
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![Colour composite image of Centaurus A, revealing the lobes and jets emanating from the active galaxyÕs central black hole. This is a composite of images obtained with three instruments, operating at very different wavelengths. The 870-micron submillimetre data, from LABOCA on APEX, are shown in orange. X-ray data from the Chandra X-ray Observatory are shown in blue. Visible light data from the Wide Field Imager (WFI) on the MPG/ESO 2.2 m telescope located at La Silla, Chile, show the stars and the galaxyÕs characteristic dust lane in close to "true colour". #L]()
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