Voyager 1 is still transmitting from beyond the heliosphere on 22 watts — less power than the bulb in your hallway — and the engineers who built it in the 1970s never expected we'd still be listening half a century later.

On 17 April 2026, mission engineers at NASA’s Jet Propulsion Laboratory in California sent commands to switch off the Low-energy Charged Particles experiment aboard Voyager 1. The instrument had been operating, almost without interruption, since the spacecraft left Cape Canaveral in September 1977. The shutdown was not a fault. It was the latest in a […]

Space Daily

The Sun is larger than you might think

https://peertube.gravitywell.xyz/w/qmaokxKak7AexjMcYK5DHz

The Sun is larger than you might think

PeerTube

NASA begins mission to map the boundaries of our heliosphere

https://misryoum.com/us/space/nasa-begins-mission-to-map-the-boundaries-of/

A NASA probe has started its mission to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun, the space agency announced on Monday.The space agency's Interstellar Mapping and Acceleration...

#NASA #begins #mission #map #the #boundaries #our #heliosphere #US_News_Hub #misryoum_com

NASA begins mission to map the boundaries of our heliosphere

A NASA probe has started its mission to map the heliosphere, which is a huge protective bubble around the solar system that was created by the sun, the

US News Hub
E X O S C O P E - H E L I O S P H E R E

YouTube
Ion-Scale Wave Emission and Absorption for Non-Maxwellian Velocity Distributions in the Inner #Heliosphere: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL118809 -> U of A researchers unravel mysteries of the solar wind: https://news.arizona.edu/news/kissing-sun-u-researchers-unravel-mysteries-solar-wind

#ListeningTo IMAP and the shape of the heliosphere, The Planetary Society - Planetary Radio: Space Exploration,
Astronomy and Science, on Oktiv

#heliosphere #planetarySociety

#Followerpower
In 2024, Opher et al published a paper in which they describe how from a few million years ago, a cold hydrogen cloud started to traverse the solar system https://www.nature.com/articles/s41550-024-02279-8

Here's an app from the authors:
https://faun.rc.fas.harvard.edu/czucker/Paper_Figures/Interactive_LxCC.html
The cloud dented the #heliosphere and so, exposed Earth to more incoming cosmic rays. And its hydrogen probably did stuff to the ozone layer too, and maybe to the methane concentration.
Huge impacts on #climate.

My question is, can #astrophotography still capture this cloud? What would it look like, photos with more blue tint than photos taken away from the cloud?
I'd imagine, it would be visible only seasonally, given how its location is now "to the left" of the sun.

I would love to search on Astrobin if I only knew how to translate the cloud position today to #deepsky objects.

Can you help?
#Astronomy #Astronomie #telescope #deepskyobject

A possible direct exposure of the Earth to the cold dense interstellar medium 2–3 Myr ago - Nature Astronomy

Modelling suggests that the Solar System may have passed through a cold dense cloud 2–3 Myr ago, in agreement with geological evidence from 60Fe and 244Pu isotopes, putting Earth in direct contact with the dense interstellar medium with potentially substantial impacts on its climate.

Nature
NASA’s IMAP Mission Captures ‘First Light,’ Looks Back at Earth 

All 10 instruments aboard NASA’s newly launched IMAP (Interstellar Mapping and Acceleration Probe) mission have successfully recorded their first measurements

NASA Science