pomarede

pomarede, 11 months ago to space

Science Magazine astronomy covers appreciation post

Martian Delta (2021) - Perseverance rover investigates ancient hydrology

https://science.org/toc/science/374/6568

#universe #mars #perseverance #rover #perseverancerover #nasa #astronomy #astrophysics #astrodon #space #science #sciencecovers #cover #covers #research #planets #planet #hydrology #jezero #crater #jezerocrater #kodiakbutte

pomarede, 11 months ago to Astronomy

Science Advances astronomy covers appreciation post

Proxima Centauri c (2020)

https://science.org/toc/sciadv/6/3

#universe #astronomy #astrophysics #astrodon #space #science #research #planet #planets #exoplanet #exoplanets #proxima #proximacentauri #proximacentauric

pomarede, 11 months ago to space

in the #arxiv this morning: Splitting of Long-Period Comet C/2018 F4 (PANSTARRS), by Man-To Hui and co-authors. The comet has two components splitting at a relative speed of 3.00±0.18 m/s. Pre-split nucleus might have consisted of two lobes resembling the ones of 67P.

https://arxiv.org/abs/2306.03635

#universe #astronomy #astrophysics #astrodon #space #science #research #comet #comets #panstarrs #67P

pomarede, 11 months ago to space

Nature astro covers appreciation post

Sands of Titan (2015)

https://nature.com/nature/volumes/517/issues/7532

#universe #astronomy #astrophysics #astrodon #nature #cover #covers #naturecovers #space #science #research #planets #planet #moon #moons #satellite #satellites #saturn #titan #cassini #spacecraft

pomarede, 1 year ago to random

some fine weather in the city today

pomarede, 1 year ago to space

With all this fuss about the #SN2023ixf supernova in Messier 101, one can ask where is it located in a 3D map of the Universe? Here it is ⤵️

This is Fig.3 of https://doi.org/10.1088/0004-6256/146/3/69 where positions are expressed in units of recession velocities (just divide by 75 km/s/Mpc to go to Mpc)

#universe #map #supernova #galaxies #cosmology #astronomy #astrophysics #astrodon #space #science #research

pomarede, 1 year ago to space

On the cover of Nature, an artist’s impression of the engulfment of a planet by its Sun-like star — an event that awaits Earth and the other planets of the inner Solar System in about 5 billion years.

https://nature.com/nature/volumes/617/issues/7959

Research paper: https://www.nature.com/articles/s41586-023-05842-x

#universe #astronomy #astrophysics #astrodon #sun #earth #solarsystem #stars #planets #space #science #research

pomarede, 1 year ago to science

CHIME Telescope doubles the number of repeating FRBs (Fast Radio Bursts - of unknown origin), providing targets for other telescopes, including those that can measure their positions very accurately, and let us know which galaxies they come from.

https://news.ubc.ca/2023/04/26/chime-astronomers-repeating-cosmic-probes/

#universe #cosmology #astronomy #astrophysics #astrodon #galaxies #chime #telescope #radiotelescope #frbs #space #science #research

pomarede, 1 year ago to space

On what happened to the HAKUTO-R M1 spacecraft, which was due to touch down in the Moon’s Atlas crater two days ago

https://www.nature.com/articles/d41586-023-01441-y

#space #science #research #moon #spacecraft #lander #moonlander #hakuto #hakuto_r #ispace #nature #astrodon

pomarede, 1 year ago to space

Q: What Does the Milky Way Look Like?
A: a multiple-arm morphology with two-arm symmetry (Perseus and Norma Arms) in the innards, extending to the outer regions where are several long, irregular arms: Centaurus, Sagittarius, Carina, Outer, and Local Arms.

https://arxiv.org/abs/2304.10690

#milkyway #galaxy #universe #cosmology #astronomy #astrophysics #astrodon #space #science #research #arxiv

pomarede, 1 year ago to science

In the arXiv, cool update on (50000) Quaoar the Transneptunian: this dwarf planet, half the size of Pluto, harbors not only a moon, Weywot, but also two rare rings, located outside the Roche limit - where rings usually accrete into satellites.

https://arxiv.org/abs/2304.09237

📷 Illustration of the large transneptunian objects; credit Eurocommuter~commonswiki @ en.wikipedia, fr.wikipedia, pl.wikipedia

#universe #astronomy #astrophysics #solarsystem #planets #quaoar #dwarfplanet #moon #rings #astrodon

pomarede, 1 year ago to Astronomy

Donald Hall, on why Mauna Kea is among the very best sites for doing astronomy.

From the documentary "Tours du monde, tours du ciel", 1991

#astronomy #astrophysics #maunakea #observatory #maunakeaobservatory #volcano #hawaii #telescope #telescopes #astrodon #science #history

video/mp4

pomarede, 1 year ago to Astro

A list of astronomers on Mastodon, by Kelly Truelove @TrueSciPhi
https://truesciphi.org/ast_mas_col.html

#astrodon #universe #astronomy #astrophysics #space #science #research

Credit image: Aurich Lawson | Getty Images

pomarede, 1 year ago to Astronomy

The Messier 106 Galaxy

This galaxy harbors a peculiar system in its nuclear region: a water vapor megamaser, the equivalent of a laser operating in microwave instead of visible light and on a galactic scale!

This maser plays an important role in the calibration of the cosmic distance ladder. Six such galactic maser systems are exploited in our recently published Cosmicflows-4 catalog of galaxy distances: https://arxiv.org/abs/2209.11238

https://en.wikipedia.org/wiki/Messier_106

#universe #astronomy #space #science