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Today Chandra is gazing at a cluster of galaxies in Virgo. Nearby in the sky is M90, one of the brightest and largest spiral galaxies in the Virgo Cluster. Approximately 59 million light years from Earth, M90 contains about a trillion stars and a thousand globular clusters.

⭐️ BP Psc is a star like our Sun that's further along in its evolution. It has spent its nuclear fuel and expanded into the "red giant" phase. The disk & jets are evidence for a recent, catastrophic interaction — the star's expansion likely consumed a nearby star or giant planet.

Today Chandra is peering into #Scorpius.🦂 Nearby in the sky is reflection nebula DG 129, a cloud of gas & dust that reflects light from neighboring stars. The bright, hazy green object on the right is the triple-star system Pi Scorpii, and it's located roughly 500 light years from Earth.

Chandra is gazing at a star in Pegasus. Nearby in the sky 2 galaxies are tangled in a tournament of gravity — a sport that the smaller galaxy, NGC 7752, is sure to lose. Will the larger galaxy fling its little neighbor through space or swallow the galaxy whole? Time will tell.

The high-mass stars in NGC 281 have powerful winds flowing from their surfaces and intense radiation that heats surrounding gas, "boiling it away" into interstellar space. This process results in the formation of large columns of gas & dust — lively laboratories of star creation. This X-ray and infrared image of NGC 281 spans roughly 48 light years across.

Today Chandra is studying the gargantuan #galaxy cluster Abell 2744. Galaxy clusters contain enormous amounts of superheated gas at temperatures of tens of millions of degrees — which glows brightly in X-ray light — and can be observed across millions of light years between galaxies. This image of the cluster spans roughly 6 million light years.

Chandra scientists have uncovered signs that Black Holes are demolishing thousands of stars and using their remains to pack on weight. This new survey of over 100 galaxies could help explain how intermediate-mass black holes (IMBHs) are made.

Today Chandra is peering into #Sagittarius. Nearby in the sky is the Lagoon Nebula, a rowdy stellar nursery located about 4,000 light years from #Earth. This image spans roughly 4 light years, and it features just a small portion of the whole Lagoon Nebula which is more than 55 light years across.

Today Chandra is gazing at #galaxies in Centaurus. Nearby in the sky is planetary nebula Fleming 1, a glowing cloud of gas around 2 white dwarf stars. In the next 10,000 years or so, Fleming 1 will slowly disperse into #space. The stars will cool & fade away for billions of years.

Today Chandra is studying M96, a spiral galaxy located about 35 million light years from Earth. The galaxy's core is not exactly at the galactic center and its spiral arms are asymmetrical — features likely caused by gravitational interaction with other galaxies nearby.

🐙Today Chandra is studying 3C58, the remnant of a supernova observed in the year 1181 AD by Chinese and Japanese astronomers. A pulsar at the center of the remnant is producing jets of X-rays that extend for trillions of kilometers. These jets are responsible for creating the elaborate web of loops & swirls revealed in the image.

As material swirls around a supermassive Black Hole, extreme forces can cause matter to be redirected away from the black hole in the form of jets traveling at almost the speed of light. Image: Cygnus A — its incredible jets span more than 600,000 light years!

🌍In order to turn Earth into a black hole, we would have to compress all its mass into a region the size of a marble. Just thought you might want to know.

Computer, enhance!

Here is a comparison of the same target, as seen by the Spitzer Space Telescope and then in the Webb Telescope’s calibration images. Spitzer, NASA’s first Great Observatory to provide high-resolution images of the infrared universe, paved the way for Webb. With its significantly larger primary mirror and improved detectors, Webb will be able to see the infrared sky with improved clarity, enabling even more discoveries.

Webb’s image, taken by its MIRI instrument, shows unprecedented detail. It features light from “polycyclic aromatic hydrocarbons (PAHs),” or molecules of carbon and hydrogen that help us better understand the gas that exists between stars.

Got questions about Webb? 🤔

Here’s your chance to ask our instrumental Webb experts about how they’re involved with Webb’s science instruments.

1. Aaron Yung is a NASA Postdoctoral Fellow at @NASAGoddard. His expertise is in modeling galaxy formation in the early universe! He says: “I’m excited about upcoming Webb programs that will detect galaxies forming in the extremely distant universe, and provide insight into the key physical processes that shape the formation of these galaxies.”

Computer, enhance!

Here is a comparison of the same target, as seen by the Spitzer Space Telescope and then in the Webb Telescope’s calibration images. Spitzer, NASA’s first Great Observatory to provide high-resolution images of the infrared universe, paved the way for Webb. With its significantly larger primary mirror and improved detectors, Webb will be able to see the infrared sky with improved clarity, enabling even more discoveries.

Webb’s image, taken by its MIRI instrument, shows unprecedented detail. It features light from “polycyclic aromatic hydrocarbons (PAHs),” or molecules of carbon and hydrogen that help us better understand the gas that exists between stars.

This diminutive galaxy lies in the southern constellation Pictor, and is approximately 17 million light-years from Earth!

Dwarf irregular galaxies tend to contain few elements other than hydrogen or helium and are considered to be similar to the earliest galaxies that populated the universe. Despite its eccentricities, NGC 1705 and others like it provide valuable insights into the evolution of galaxies!

🦎 + ☁️ = ?

This image taken by NASA Hubble shows a segment of the 65-light-year wide star-forming region called the Chamaeleon Cloud Complex.

The segment in this Hubble composite image, called Chamaeleon Cloud I, reveals dusty-dark clouds where stars are forming, dazzling reflection nebulae glowing by the light of bright-blue young stars, and radiant knots called Herbig-Haro objects.

Herbig-Haro objects are bright clumps and arcs of interstellar gas, energized by jets expelled from infant stars (also called protostars) in the process of forming.

The white-orange cloud at the bottom of the image shows one of these protostars. White jets of hot gas ejected from the protostar’s poles create a Herbig-Haro object.

Giada Arney is a planetary scientist and helps lead NASA’s upcoming DAVINCIMission. DAVINCI stands for “Deep Atmosphere Venus Investigation of Noble Gases, Chemistry, and Imaging” and the mission will provide clues to Venus’ past, hidden in surface rocks and atmospheric gases.

During two flybys, the DAVINCI spacecraft will study the cloud tops in ultraviolet light and measure heat emanating from the surface of the planet’s night side in search of geological clues of the planet's mysterious past. Eventually, a probe will make an hour-long descent to the planet’s surface, taking thousands of atmospheric measurements and images as it goes to help scientists better understand the past and present of this enigmatic world.

Giada is very excited about uncovering Venus’ hidden past. Leave your questions about Venus and DAVINCI in the comments and Giada will answer them!