"big bada boom"

Mike Beauregard says: night sky yardstick, 30 arc-min = 1/2 degree = Moon-width

ESA's PROBA-2 View of Europe's Solar Eclipse by NASA Goddard Space Flight Center

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Mike Beauregard says: Zeta Ophiuchi's super nova ejection, 440 l-yrs away

Embracing a Rejected Star by NASA's Marshall Space Flight Center

237 7

Mike Beauregard says: RAquarii's annual supergiant star flare, 710 l-yrs

NASA’s Hubble Sees a Stellar Volcano by NASA's Marshall Space Flight Center

151 3

Mike Beauregard says: Future supernova, 800 l-yrs, mass-ejecting binary system.

Binary Star System CH Cyg (NASA, Chandra, Hubble, 05/09/10) by NASA's Marshall Space Flight Center

17 17

Mike Beauregard says: Future Supernova, 2300 light-yrs, tightly orbiting pair of red giants, 0.32 light-yrs wide, NASA credited

Nebula - NGC 2346 by Marc Van Norden

Mike Beauregard says: Blaze Star binary star system, 3000 l-yrs, night sky image by Zlatko F. Kovacevic

Recurrent nova T CrB - Explosion coming soon by Zlatko F. Kovacevic

2

Mike Beauregard says: likely unstable young supergiant Wolf-Rayet star, 3000 light-years away

Hubble Observes One-of-a-Kind Star Nicknamed ‘Nasty’ by NASA Goddard Space Flight Center

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Mike Beauregard says: old supernova remnant, 4500 light-years away, image by Jochen Maes

G296.5+10.0 by Jochen Maes

305 37

Mike Beauregard says: Future Nova, 5000 l-yrs away, mass-exchanging binary system, image by Peter Tuthill & James Lloyd.

MWC 922: The Red Square Nebula by Jon

Mike Beauregard says: 6000 l-yrs away, 100 light-yrs (60 arc-min) wide, variably ejecting star

WR 134, Wolf-Rayet star, HOO by Mikhail Vasilev

39 4

Mike Beauregard says: 6300 light-yrs, 2 star merger formed Blue Ring Nebula, age not known

16-Year-Old Cosmic Mystery Solved, Revealing Stellar Missing Link by NASA's Marshall Space Flight Center

101 6

Mike Beauregard says: 8000 light-yrs to spinning dance pair of giant Wolf-Rayet stars

Apep by Judy Schmidt

45 5

Mike Beauregard says: red giant SBW2007, future supernova; 20,000 light-yrs away

Hubble Sees a Star Set to Explode by NASA Goddard Space Flight Center

445 16

Mike Beauregard says: 2002 AD nova, 19,000 l-yrs away, 2.4 arc-min wide, supergiant star eruption, NASA image credited

Mystery? - V838 Monocerotis, Hubble Space Telescope by Rudy Pohl

50 4

Mike Beauregard says: 1975 nova flare, red giant/white dwarf, 0.25 l-yrs wide, 3400 l-yrs away

Symbiotic star Mira HM Sge by European Space Agency

36

Mike Beauregard says: GK Persei, 1901 AD white-dwarf nova, 1440 light-years away

Firework Nova by NASA Goddard Space Flight Center

463 16

Mike Beauregard says: ~1898 AD supernova, G1.9+0.3 SNR at 27,700 l-yrs, now 1.3 l-yrs wide

The Youngest Supernova in Our Galaxy (NASA, Chandra, 5/14/08) by NASA's Marshall Space Flight Center

18 3

Mike Beauregard says: 1843 AD, night sky eye-bright Eta Carinae, 7500 l-yrs away

Eta Carinae Area and the Homunculus Nebula by Rolf Wahl Olsen

6

Mike Beauregard says: Cassiopeia A, 1680 AD "noon day star", 11.000 l-yrs away, now 10 l-yrs wide

NASA Telescopes Chase Down “Green Monster” in Star’s Debris by NASA's Marshall Space Flight Center

151 3

Mike Beauregard says: CK Vulpeculae, 1670 AD nova event thought to be two stars colliding, 10,000 light-years away

Through the Hourglass by European Southern Observatory

4

Mike Beauregard says: October 8, 1604 AD; ~20,000 light-years away, now 14 light-years wide

Kepler's Supernova Has Fast-Moving Shell (NASA, Chandra, Hubble, Spitzer,10/06/04) by NASA's Marshall Space Flight Center

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Mike Beauregard says: 160,000 light-years away in LMC, SNR 0509-67.5

VLT image of a double-detonation supernova by European Southern Observatory

2 1

Mike Beauregard says: November 11, 1572 AD; 7500 light-years away, 35 light-years wide, 3 times width of Moon.

Tycho Supernova Remnant (NASA, Chandra, 03/24/11) by NASA's Marshall Space Flight Center

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Mike Beauregard says: famous 1181 AD supernova, 800 l-yrs away

Marvel at stunning echo of 800-year-old explosion by European Space Agency

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