2024 March 5

Uranus- JWST NIRCam

This image also shows 14 of the planet’s 27 moons: Oberon, Titania, Umbriel, Juliet, Perdita, Rosalind, Puck, Belinda, Desdemona, Cressida, Ariel, Miranda, Bianca, and Portia.

This picture shows Uranus's north polar cap as well as a storm just below the polar edge.

Apollo 11 Launch

First image of Saturn, taken in 1885, by Paul and Prosper Henry.

Saturn in 2017 as taken by Cassini:

And Saturn in 2023 in infrared, as taken by JWST

A universe in motion seen from the International Space Station during a night pass over Earth.

(@ wonderofscience on Twitter)

Timelapse created from images courtesy of the Earth Science and Remote Sensing Unit, NASA Johnson Space Center(ISS061-E-110520-111341 eol.jsc.nasa.gov).

Corona Australis

Nebula is mostly hydrogen gas, and a small amount of metals (elements above helium) which tend to be covered as "Dust", but it's the dust that best reflect the light of the stars, and as the largest and most energetic of them are blue, you get these areas of blue haze. Hydrogen more often glows red when bombarded by UV light, the two colours together quite magical.

The area has a number of NGC objects 6726,6727,6729 but born of the same huge molecular cloud.

Our Milky Way has many such areas full of star birth, and as blue giants are not long lived, supernova and star death too.

Did Betelgeuse Swallow a Binary Partner ?

The star hit the news back in late 2019 when it suddenly dimmed in an event known as the great dimming, and since there's been a lot of papers and theories to what really happened.

At the time, there was talk of supernova from a minority, while most astronomers reserved judgement on this, which turned out to be the right call, although even they had to admit bafflement at why this star suddenly become so dim.

Since, then the prevailing and mostly accepted theory is that the star ejected a huge amount of material which included carbon and thus concealed parts of the star, causing the dimming.

A new paper from Department of Physics and Astronomy at Louisiana State University has looked at another idea, that at some point in the recent past the star had consumed a binary partner.

While the study can only make suggestions at this point, some of the observed facts about Betelgeuse certainly fit the bill. The star spins very quickly for an old supersized red giant, even faster than our own sun, and the team believe a past consumption may have transferred energy to the star, accounting for this spin rate.

The next thing was that the super giant star didn't just dim, it rebounded and actually brightened considerably too. These events of material coming to the surface and briefly causing a brightening effect are predicted through models of this occurrence.

The star is not likely to go supernova anytime soon, but I would put bets on the likelihood of the star surprising us once again in the coming decades.

SPACEMAS DAY 2 ✨🪐🌎☄️☀️🌕

There's a new space telescope in the sky: Euclid. Equipped with two large panoramic cameras, Euclid captures light from the visible all the way to the near-infrared. It took five hours of observing for Euclid's 1.2-meter diameter primary mirror to capture, the 1000+ galaxies in the Perseus cluster which lies 250 million light years away. More than 100,000 galaxies are visible in the background, some as far away as 10 billion light years. Euclid's initial surveys, covering a third of the sky and recording over 2 billion galaxies, will enable a study of how dark matter and dark energy have shaped our universe.

Image Credit: ESA, NASA

Lunar halo

@picabuzz