Italian mathematician, astronomer and engineer Giovanni Domenico Cassini was born #OTD in 1625.
His observations & calculations helped to confirm & refine Kepler’s laws of planetary motion. He formulated Cassini’s Law, describing the rotational behavior of the Moon, which was crucial for understanding the Moon's synchronous rotation with the Earth. He was involved in measuring the meridian arc of Paris, contributing to the accurate determination of the shape of the Earth.
Credits:
Processing: Andrea Luck CC BY
Image data: INAF/LargeBinocularTelescope Observatory/Georgia State University
IRV-band observations by SHARK-VIS@LBT [P.I. F. Pedichini]
The Atacama Desert in #Chile has some of the darkest night skies in the world, perfect for #astronomy. But it's also a very seismic area. When an #earthquake hits, how do we keep our telescopes safe? We tell you all about it in this new video: https://youtu.be/y_nfFwKwmmM
Remember Zoozve? The quasi-moon of Venus featured on Radiolab that was named after a typo on a map of the Solar System?
Now is your chance to name one of Earth’s quasi-moons. The IAU and Radiolab are holding a contest — they will pick the top 10 names, which then go to a popular vote.
Some planets are born alone, live alone, and die alone. The ESA's Euclid space telescope just found a nest of these loners in the constellation Orion.
At least the rogue planets have chosen a gorgeous spot to go about their business: This is where the newfound worlds are hanging out (toward the top of the image).
#SimulatedUniverses :
cosmic rays injected by different processes in my simulation - zoom into a void surrounded by filaments.
ENZO simulations on LEONARDO cluster at CINECA. #astrodon#astronomy
I finally got a chance to interview fellow PhD'er Sarah Caddy from our faculty about this excellent new research and looking at stars and satellites (like the ISS) DURING DAYLIGHT HOURS!
THey're using a telescope called 'The Huntsman' and look how many eyes it has 🕷️🔭
1/4 "All those protoplanetary discs will be lost, like tears in a rain of ultraviolet photons."
Ok, it doesn't sound as cool as the actual quote, but still 😉
This tear-shaped object is a protoplanetary disc –the birthplace of planets around another star– observed with ESO's Very Large Telescope. Material from the disc is being stripped away by a bright star beyond the upper-right corner, outside of the field of view, hence this cometary shape.
Happy June! Together, the Hubble and Spitzer space telescopes present a colorful view of the Orion Nebula’s dynamic star-forming environment in ultraviolet, infrared, and visible light. Credit: NASA, ESA, STscI. #astronomy
Seeking new data, the James Webb Space Telescope is observing objects that are old acquaintances to the Hubble Space Telescope. Magic Universe proposes a slow transition of the images of both devices in orbit to better see what is new in Webb's latest observations, activate this transition by placing the mouse over the image or clicking on touch screens. The objective of..... #astronomy#space#astrophysics#astrophotography
It's #MilkyWay season again here in the northern hemisphere.
I took this image using my phone last night around 2am looking south from my moderately light-polluted site in east Tucson. 5×90s subs captured in Astroshader were combined in Siril. A final stretch was applied in GIMP.
Soon the telescope platform at ESO's Paranal Observatory in #Chile will look very different at night: all four of the 8.2 m telescopes of the VLT will be equipped with lasers! This is one of the ongoing upgrades of the GRAVITY+ instrument, which will allow us to study black holes, stars and planets like never before.
Messier 53 (M53) is a globular cluster located in the constellation Coma Berenices. Messier 53 reaches its annual culmination at astronomical midnight around April 10th.