Sirius is a binary star, with a small white dwarf called the Pup orbiting the large primary star. It’s not easy to observe, but it is possible. Here’s how. Source: https://earthsky.org/brightest-stars/how-to-observe-sirius-b…
Tag: Hubble telescope
JADES will go deeper than the Hubble Deep Fields
Astronomers announced this month that a new deep-field survey called JADES will be carried out with the James Webb Space Telescope, Hubble’s much-anticipated successor. The Webb is due to launch later this year. Source: https://earthsky.org/space/jades-deep-field-surveys-epoch-of-1st-galaxies…
The Geeky Advent Calendar Tradition Continues in 2020
Long-time Slashdot reader destinyland writes: Advent of Code isn’t the only geeky tradition that’s continuing in 2020. “This is going to be the first full year with Raku being called Raku,” notes the site raku-advent.blog. “However, it’s going to be the 12th year (after this first article) in a row with a Perl 6 or Raku calendar, previously published in the…
What is a supernova?
A supernova is a star’s colossal explosion at the end of its life, potentially outshining its entire galaxy. Read about the causes and types of supernovae here. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-supernova…
Hubble telescope reveals asteroid Psyche’s rusty surface
Scientists already had Psyche classified as a metallic asteroid, but new observations with the Hubble telescope reveal its rusty surface and provide scientists with a unique view into what Earth-like planets are like during their formation. Source: https://earthsky.org/space/hubble-asteroid-psyche-iron-nickel-rust-protoplanet…
Hubble telescope spots a ‘Greater Pumpkin’ in space for Halloween
As families tuck into their couches to watch Charlie Brown’s quest for the great pumpkin this Halloween, they may be surprised to hear that NASA has already discovered a “greater pumpkin.” Source: https://www.livescience.com/hubble-telescope-spies-greater-pumpkin-galaxy-crash-photo.html
10 proofs the Moon Landing was real, debunking conspiracy theories
How is the flag waving on the Moon? Why aren’t there any stars in the Apollo photos? EarthSky debunks these Moon Landing conspiracy theories and more. Source: https://earthsky.org/uncategorized/10-proofs-the-moon-landing-was-real-debunking-conspiracy-theories…
The awesome beauty of the Eagle Nebula
The Eagle Nebula – aka Messier 16 or M16 – is home to several well-known cosmic structures, including the stunning Pillars of Creation and Stellar Spire. Source: https://earthsky.org/clusters-nebulae-galaxies/the-awesome-beauty-of-m16-the-eagle-nebula…
Hubble celebrates its 30th anniversary
For 30 years, the NASA/ESA Hubble Space Telescope, launched April 24, 1990, has been snapping photos of distant stars, providing a time machine that has taken astronomers back to when the universe was less than a billion years old. Source: https://earthsky.org/space/hubble-30th-anniversary-video…
Quasar tsunamis rip across galaxies
Astronomers using the Hubble Telescope found that the region around a quasar’s black hole pushes out material at a few percent the speed of light. These quasar tsunamis wreak havoc on the galaxies in which the quasars live. Source: https://earthsky.org/space/quasar-tsunamis-rip-across-galaxies…