Reblogged aarohisingh25
Noooooo, not my daily schedule!
Reblogged astrophysics-daily
modern1960s-deactivated20180330
NASA Mission Control Center, 1961 / Alan Shepard waits to become the first American in space, 1961
I want to, but can't imagine his feelings.
Reblogged
Hera asteroid mission surveys Mars’s Deimos moon
While performing yesterday’s flyby of Mars, ESA’s Hera mission for planetary defence made the first use of its payload for scientific purposes beyond the Earth and Moon. Activating a trio of instruments, Hera imaged the surface of the red planet as well as the face of Deimos, the smaller and more mysterious of Mars’s two moons.
Launched on 7 October 2024, Hera is on its way to visit the first asteroid to have had its orbit altered by human action. By gathering close-up data about the Dimorphos asteroid, which was impacted by NASA’s DART spacecraft in 2022, Hera will help turn asteroid deflection into a well understood and potentially repeatable technique.
Hera’s 12 March flyby of Mars was an integral part of its cruise phase through deep space, carefully designed by ESA’s Flight Dynamics team. By coming as close as 5000 km away from Mars, the planet’s gravity shifted the spacecraft’s trajectory towards its final destination, the Didymos binary asteroid. This manoeuvre shortened its journey time by many months and saved a substantial amount of fuel.
Moving at 9 km/s relative to Mars, Hera was able to image Deimos from as close as 1000 km away, surveying the less-seen opposite side of the tidally locked moon from Mars. Measuring 12.4 km across, dust-covered Deimos might actually be a leftover of a giant impact on Mars or else a captured asteroid.
“Our Mission Analysis and Flight Dynamics team at ESOC in Germany did a great job of planning the gravity assist,” comments ESA’s Hera Spacecraft Operations Manager Caglavan Guerbuez. “Especially as they were asked to fine-tune the manoeuvre to take Hera close to Deimos – which created quite some extra work for them!”
Three Hera instruments were used during the flyby:
- Hera’s black and white 1020x1020 Asteroid Framing Camera used for both navigation and scientific investigation acquires images in visible light.
- Hera’s Hyperscout H hyperspectral imager observes in a range of colours beyond the limits of the human eye, in 25 visible and near-infrared spectral bands, to help characterise mineral makeup.
- Hera’s Thermal Infrared Imager, supplied by the Japan Aerospace Exploration Agency (JAXA) images at the mid-infrared wavelengths to chart surface temperature, in the process revealing physical properties such as roughness, particle size distribution and porosity.
ESA’s Hera mission scientist Michael Kueppers explains: “These instruments have been tried out before, during Hera’s departure from Earth, but this is the first time that we have employed them on a small distant moon for which we still lack knowledge, with possibly interesting results.”
Hera Principal Investigator Patrick Michel, Director of Research at CNRS / Observatoire de la Côte d'Azur, adds: “Other Hera instruments we will utilise once we reach the Deimos and Dimorphos asteroids were not activated either because they are not usable at such long range and rapid speed from a target – such as our PALT laser altimeter, possessing a maximum range of 20 km – or because they are aboard Hera’s pair of CubeSats which will only be deployed at the asteroids.”
Hera also performed some joint observations of Deimos with ESA’s own Mars Express, which has been in orbit around the red planet for more than two decades.
Results from the Deimos close encounter should help guide operational planning the next year’s Martian Moons eXploration Mission, MMX, being led by the Japanese Aerospace Exploration Agency (JAXA) in collaboration with NASA, the French space agency CNES, the German Aerospace Center (DLR), and ESA. MMX will not only collect detailed measurements of both martian moons but also land on Phobos to collect a sample and return it to Earth for analysis.
With Didymos being 780 m across and Dimorphos just 151 m across, Hera’s twin destinations are many times smaller than the city-sized Deimos moon, but Hera is headed on course towards them. A series of ‘impulsive rendezvous’ thruster firings starting in October 2026 will fine-tune its heading to reach the Didymos system that December.
ESA Hera mission manager Ian Carnelli comments: “This has been the Hera team’s first exciting experience of exploration, but not our last. In 21 months the spacecraft will reach our target asteroids, and start our crash site investigation of the only object in our Solar System to have had its orbit measurably altered by human action.”
I am excited for MMX.
Reblogged fuckyeahcelestialthings
The largest photomosaic of the Andromeda galaxy, assembled from Hubble observations, has been unveiled. It took more than 10 years to collect data for this colorful portrait of our neighboring galaxy and was created from more than 600 snapshots: https://bit.ly/405MsbK #AAS245
Bruh 10 years is crazy....
Reblogged fuckyeahcelestialthings
saturn on a cloudy night
Watching these stars and planets, reminds me why I study.
🖤🖤
Reblogged
10 people you want to get to know better!
Thank you for the tag @private-bryan 😊
Last song: Frou-frou Foxes in Midsummer Fires by Cocteau Twins
Fav colour: RED and I'm drawn to aquamarine and navy blue
Last book: I've read only the first chapter of The Painted Veil. Still need to find the right time and the perfect mood to read. 😅
Last movie: Birdman (The Unexpected Virtue of Ignorance). Ed Norton was so fine❤️
Last tv show: Masterchef Australia. Not much of tv show fan. It's been a long time since I watched tv.
Sweet/savoury/spicy: All of them! Depends on the mood. Spicy is a must tho.
Relationship status: Single Pringle
Last thing I googled: NYT's Connection hint
Looking forward to: Start making this bag. Finally found a good pattern and the materials are affordable.
Current obsessions: Edward Norton (coming back to my Norton period, thanks to Glass Onion 🤭) and ATLA Maiko.
Haven't got 10 people, tagging @hopeconquersall @helloimcornelius @goldbloomsworld if you want to😁🫶🏻
Thanks @soratobukujira
Last song: no easy way out- bullet for my valentine
Favourite colour: black and blue
Last book: Currently reading save the cat.
Last movie: Pocahontas
Last TV show: blue lights
Sweet/savoury/spicy: more savory and spicy
Relationship status: married
Last thing I googled: Disney’s Renegade Nell
Looking forward to: dinner. Pasta tonight
Current obsessions: writing
Last song - zitti e buoni (måneskin)
Favorite colour - bluee
Last book - (currently reading actually) the count of Monte Christo
Last tv show - house of dragons
Taste - sweets, anything and everything sweet
Relationship status - single
Last thing I googled - "python plotting axis label how"
Looking forward to - seeing my dogs again
Current obsession - wikipedia's unusual articles page
No pressure tags
Last song: My Way by Frank Sinatra.
Favourite Colour: I like all of them, but purple I prefer.
Last book: Legends and Lattes by Travis Baldree. I am currently reading it and I love the way he describes the setting.
Last movie: Watching the Detectives. Ik I am late. But it was pure comedy gold. Oh gawd, it awakens my bi energy.
Last tv show: House MD. I am really into Wilson.💜
Relationship status: Does my inner self count cuz, we're fighting everyday.
Last thing I googled: "full wave rectifier definition". Finals week, more like weeks.
Looking forward to: Abyss of complete darkness, I got chem exam on 27. And some coffee.
Current obsessions: Welcome to the Universe book by Neil de Grasse Tyson and I can't think of anything else, tumblr has become my new obsession though, so there's that. And with the way Yoda speaks, obsessed I am.😂
I can't think of 10 people:
Reblogged messy-does-cosmology
There’s a scientific journal called “Get me off Your Fucking Mailing List”.
In 2005, computer scientists David Mazières and Eddie Kohler created this highly profane ten-page paper as a joke, to send in replying to unwanted conference invitations. It literally just contains that seven-word phrase over and over, along with a nice flow chart and scatter-plot graph.
An Australian computer scientist named Peter Vamplew sent it to the International Journal of Advanced Computer Technology in response to spam from the journal. Apparently, he thought the editors might simply open and read it.
Instead, they automatically accepted the paper — with an anonymous reviewer rating it as “excellent” — and requested a fee of $150. While this incident is pretty hilarious, it’s a sign of a bigger problem in science publishing. This journal is one of many online-only, for-profit operations that take advantage of inexperienced researchers under pressure to publish their work in any outlet that seems superficially legitimate.
Naaah, I am gonna use this.😂
Source: vox.com
Reblogged astrophysics-daily
Carl Sagan, Cosmos