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#astronomers

2 posts2 participants0 posts today

Much smaller than gas-giants and typically cooler than hot Jupiters, sub-Neptunes were extremely challenging to observe before the launch of #JWST.

Though they appear to be the most common type of #exoplanet in our galaxy, you won’t find them in our solar system.

Astronomers are trying to understand how these planets formed and evolved, why they are so common, and why they don’t orbit our Sun.

#astronomers #exoplanets
webbtelescope.org/contents/new

#Astronomers crack the case of a mysterious deep #space radio signal that repeats every 2hr
Team tracked to a strange binary system containing a dead star or "white dwarf" and a red dwarf stellar companion. The radio pulse repeats every 2hr and was first detected a decade ago.
Research indicates that cause of this repeating radio signal is magnetic fields of the white dwarf and its red dwarf stellar companion slamming together in this tight binary, designated #ILTJ1101.
space.com/the-universe/astrono

Space · Astronomers crack the case of a mysterious deep space radio signal that repeats every 2 hoursBy Robert Lea

3D map of #exoplanet #atmosphere shows wacky climate
#Astronomers have mapped the 3D structure of the layered atmosphere of one such ultra-hot #Jupiter-size exoplanet, revealing powerful winds that create intricate #weather patterns across that atmosphere.
"This planet’s atmosphere behaves in ways that challenge our understanding of how weather works."
#Astronomy and #Astrophysics reported on unexpected identification of #titanium in the exoplanet's atmosphere as well.
arstechnica.com/science/2025/0

Ars Technica · 3D map of exoplanet atmosphere shows wacky climateBy Jennifer Ouellette

#astronomy #astronomers

"But there are indeed (at least) four major discoveries — purely serendipitous discoveries, that only occurred because we dared to look at the Universe as we’ve never looked at it before — that have truly shown us aspects of the Universe that were total surprises. Because of them, our cosmic picture is forever changed."

bigthink.com/starts-with-a-ban

Big ThinkScience's great paradox: we don't know what we don't know until we lookOur scientific instruments are constantly improving, revealing nature's workings as never before. Without them, we'll remain in the dark.
Replied in thread

@carapace First thought of mine on seeing that: why is the jet turbulent?

That is, it's waving like smoke coming off a candle or cigarette.

And from what I understand of the turbulent behaviour of smoke, it's that it's interacting with the air through which it's moving.

But that jet ... is jetting off into the hard vacuum of space, modulo perhaps some space dust. But that dust really shouldn't be interacting as a whole, but as widely dispersed point masses. I'd expect the jet to spread out, but for it to show turbulent behaviour? That's ... bizarre.

The Wikipedia video caption suggests that the pulsar is precessing, and that this results in a helical structure to the jet. And it could be that turbulence is just my projection onto the video. But it sure looks turbulent...

Any real #astronomers out there know what theory/ies are proposed for this behaviour?

Sitting here watching #DrBecky on #YouTube and a scary thought came to me. #Astronomers come from all over the globe come to the #US to conduct their science or for conferences, whether it's an optical telescope like in Arizona or Hawaii or a radio telescope.

With the current draconian
#Gestapo tactics being put in-place by #Trump and his minions, I think the risk is super-high now for astronomers and other #academics for being detained and/ or harassed. If there's one thing Trump and his minions hate more than woke people, it's people that are smarter than them.

Frankly, the
#US should be kicked out of most international #STEM organizations at this point. #USpol

Here are some shots of last night's lunar eclipse captured by the Allan I Carswell Observatory crew!
Missed the lunar eclipse? Well you're in luck! We livestreamed it and you can watch here:
https://www.youtube.com/live/TeGX-PU2DfE?si=xdjssz-YZgK2vak5

Image Credit: The AICO Crew(Charles Yung, Zachary Sharp, Nakul Sethuram, David Abeziz, Hector Jimenez, Saranya Sivaneshon, Boris Ciric, Pouria Azimi, Giuseppe Triumbani).

#Telescope #LunarEclipse #BloodMoon #EclipseWatch #Toronto #Physics #Astronomy #YorkUObservatory #AllanICarswellObservatory #Science #SpaceExploration #Astronomers
Total Lunar Eclipse Alert!
Tonight the Moon will pass completely into Earth's shadow (aka its umbra), transforming into an eye-catching Blood Moon! This total lunar eclipse, which will be visible from Toronto, is a celestial event you won’t want to miss!
Partial Eclipse starts: Mar 14 at 1:09 AM ET

Full Eclipse starts: Mar 14 2:26 AM ET
Will you be watching? Let us know in the comments!

#Telescope #LunarEclipse #BloodMoon #EclipseWatch #Toronto #Physics #Astronomy #YorkUObservatory #AllanICarswellObservatory #Science #SpaceExploration #Astronomers #Telescope
Total Lunar Eclipse Alert!
On Friday, March 14, 2025, the Moon will pass completely into Earth's shadow (aka its umbra), transforming into an eye-catching Blood Moon! This total lunar eclipse, which will be visible from Toronto, is a celestial event you won’t want to miss!

Partial Eclipse starts: Mar 14 at 1:09 AM ET
Full Eclipse starts: Mar 14 2:26 AM ET
Will you be watching? Let us know in the comments!

#Telescope #LunarEclipse #BloodMoon #EclipseWatch #Toronto #Physics #Astronomy #YorkUObservatory #AllanICarswellObservatory #Science #SpaceExploration #Astronomers #Telescope
Allan I Carswell Observatory Astronomy Evening at Downsview: Join the observatory crew for an astronomy talk about Saturn's Stunner: the disappearing Ring Trick, followed by stargazing at Downsview Park! This event has a question session and, if the weather is clear, live observation after the talk! The observatory will also bring some of their cool space swag for purchase, like the spacelet space-bracelets, and our special 2025 calendars.
www.yorku.ca/science/observatory/

When: Sunday March 9th

What: A talk about 'Saturn's Stunner: The disappearing Ring Trick' followed by stargazing at Downsview Park
The event link is here: https://downsviewpark.ca/events/astronomy-all-1


Where:
Discovery Center at Downsview Park: 70 Canuck Ave, North York, ON M3K 2C5:https://maps.app.goo.gl/p7j4K6JNro9G9ugG


-telescopes/parking lot:https://maps.app.goo.gl/niFTFQag19dDAdXU7

#Telescope #DownsviewPark #Toronto #ScienceOutreach #Physics #Astronomy #YorkUObservatory #AllanICarswellObservatory #Science #SpaceExploration #Astronomers #Astronomy #AstronomyForAll
Allan I Carswell Observatory Astronomy Evening at Downsview: Join the observatory crew for an astronomy talk about Saturn's Stunner: the disappearing Ring Trick, followed by stargazing at Downsview Park! This event has a question session and, if the weather is clear, live observation after the talk! The observatory will also bring some of their cool space swag for purchase, like the spacelet space-bracelets, and our special 2025 calendars.

When: Sunday March 9th

What: A talk about 'Saturn's Stunner: The disappearing Ring Trick' followed by stargazing at Downsview Park
The event link is here: https://downsviewpark.ca/events/astronomy-all-1


Where:
Discovery Center at Downsview Park: 70 Canuck Ave, North York, ON M3K 2C5:https://maps.app.goo.gl/p7j4K6JNro9G9ugG


-telescopes/parking lot:https://maps.app.goo.gl/niFTFQag19dDAdXU7

#Telescope #DownsviewPark #Toronto #ScienceOutreach #Physics #Astronomy #YorkUObservatory #AllanICarswellObservatory #Science #SpaceExploration #Astronomers #Astronomy #AstronomyForAll