Uploaded December 2024 | Updated September 2026, 2 weeks ago
I want you to keep a really close eye on Venus and Saturn in particular over the next month, because they will be getting steadily closer and closer to each other as December blurs into January, until they reach their closest approach on the 18th january, known as a conjunction, when they’ll be 2 degrees apart from each other, that’s about 4 full moon widths, or a few thumbs wide held at arms length away from you. If you have multiple clear nights over the next few days this is a really nice thing to spot night after night and notice how much they’ve moved. There’s no significance to this, it’s just a pretty thing to notice in the sky, especially if you Break out some binoculars when they’re at their closest approach.
#stargazing #planets #venus #saturn #shorts
I want you to keep a really close eye on Venus and Saturn in particular over the next month, because they will be getting steadily closer and closer to each other as December blurs into January, until they reach their closest approach on the 18th january, known as a conjunction, when they’ll be 2 degrees apart from each other, that’s about 4 full moon widths, or a few thumbs wide held at arms length away from you. If you have multiple clear nights over the next few days this is a really nice thing to spot night after night and notice how much they’ve moved. There’s no significance to this, it’s just a pretty thing to notice in the sky, especially if you Break out some binoculars when they’re at their closest approach.
#stargazing #planets #venus #saturn #shorts



![How do we know there are 2 TRILLION galaxies in the Universe?
AD - To try everything Brilliant has to offer for free for 30 days visit https://brilliant.org/DrBecky and youll also get 20% off an annual premium subscription which gives you unlimited daily access to Brilliant. | How many galaxies are there out there in the Universe? Well our best estimate in 2026 is that there’s *at least* 2 trillion galaxies, islands of billions of stars just like our own Milky Way galaxy. But how do we actually know that? That’s far too big of a number for anyone to have gone out and literally done a count one by one [insert home alone count scene], so what do we do instead? Well in this video we’re going to dive in to how us astrophysicists get at this number, and we’re going to try and put that number into content, how big is 2 trillion really?
Conselice et al. (2016) - https://assets.science.nasa.gov/content/dam/science/missions/hubble/releases/2016/10/STScI-01EVSR313NHNAC17DF62MP9QV9.pdf
00:00 2 TRILLION galaxies
01:10 Complication 1: the observable Universe
02:40 Complication 2: which direction you look in?
04:31 Complication 3: which telescope you use
06:35 Complication 4: what counts as a galaxy?
08:31 How big is 2 trillion really?
Video filmed on a Sony ⍺7 IV
Video edited by Martino Gasparrini: https://www.fiverr.com/mgs_editing
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👩🏽💻 Im Dr. Becky Smethurst, an astrophysicist at the University of Oxford (Christ Church). I love making videos about science with an unnatural level of enthusiasm. I like to focus on how we know things, not just what we know. And especially, the things we still dont know. If youve ever wondered about something in space and couldnt find an answer online - you can ask me! My day job is to do research into how supermassive black holes can affect the galaxies that they live in. In particular, I look at whether the energy output from the disk of material orbiting around a growing supermassive black hole can stop a galaxy from forming stars.
http://drbecky.uk.com How do we know there are 2 TRILLION galaxies in the Universe?](https://i.ytimg.com/vi/ttsxKzWle00/mqdefault.jpg)






