El Gordo is the site of 2 galaxy clusters running into each other at several million miles per hour. Scientists who discovered it nicknamed it "El Gordo" (which means "the fat one" in Spanish) because of its gigantic mass: ~3 million billion times the mass of our Sun! #FatTuesday

Gravity actually increases slightly as you get closer to the center of the Earth, reaching a maximum at the core-mantle boundary due to an increase in density of the core material.

This 360-degree theater could be the future of movie theaters

#ParkerSolarProbe took this image of Venus during a gravity assist in July 2020. The visibility of Aphrodite Terra, a highland on Venus’ surface, surprised scientists — and suggests the spacecraft's camera may see more wavelengths than previously thought. go.nasa.gov/3uI3ivz

The Double Asteroid Redirection Test (DART), NASA's first #planetarydefense test mission, will impact an #asteroid to demonstrate a technique that could be used in the future to protect Earth from a potential impact. Learn more in this new Johns Hopkins APL video! nasa.gov/planetarydefen…

Since the first exoplanet was discovered orbiting a Sun-like star in 1995, the known worlds beyond our solar system have grown to 4,300+. We are living in an age of discovery✨ exoplanets.nasa.gov/discovery/disc…

✨ Over the past 10 years, the LHC has found more than 50 new particles called hadrons. Find out more: home.cern/news/news/phys…

Looking like a movie explosion, this Wolf-Rayet star is actually an extremely hot star ejecting hot clumps of gas into space! Makes us wish we had a gif of it. Learn more about the massive WF124: bit.ly/39NXnwm

Hubble solved the mystery of a monster star's dimming: VY Canis Majoris is expelling huge clouds of dust in the final stages of its life. 🔗 orlo.uk/mop10 Credit: NASA / @ESA , and R. Humphreys ( @umnews ), & J. Olmsted ( STScI )

Dirac's Equation In 1928 Paul Dirac postulated the existence of positively charged electrons - the positrons, the first antimatter particles. The existence of the positron was experimentally confirmed in 1932 and started a new way of thinking about particles.

It's getting hot, hot, hot! 🔥 🔥 #OTD in 1982, USSR spacecraft Venera 14 landed on Venus and survived 57 minutes on the 880 °F (ca. 470 °C) surface! The spacecraft examined a soil sample and returned photos of its surroundings before succumbing to the heat.

10,000 digits of 𝛑

#OnThisDay in 1996, Hubble revealed the surface of Pluto for the first time since its discovery in 1930. Until then, Pluto had only appeared as a dot of light in even the largest ground-based telescopes: bit.ly/3p4fYsB

💥Supernova remnant SN 1006: When the explosion of a star was seen over 1000 years ago, it was brighter than Venus & visible during the day for weeks. The brightest supernova ever recorded on Earth, it was documented in China, Europe, Japan, & other regions of the ancient world.

Ring galaxies may look like dazzling jewelry, but they’re anything but that! 💍 Scientists think they may be a product of enormous collisions where a smaller and a larger galaxy meet at just the right angle. tmblr.co/Zz_UqjZAfT9tim…

In 1690, Giovanni Cassini was the first person to suggest that Jupiter could not be a solid planet. He noted that the planet was rotating at different rates depending on the latitude (differential rotation).