In space, being outshone is an occupational hazard. This Hubble Space Telescope image captures a galaxy named NGC 7250. Despite being remarkable in its own right — it has bright bursts of star formation and recorded supernova explosions— it blends into the background somewhat thanks to the gloriously bright star hogging the limelight next to it. The bright object seen in this Hubble image is a single and little-studied star named TYC 3203-450-1, located in the constellation of Lacerta (The Lizard). The star is much closer than the much more distant galaxy. Only this way can a normal star outshine an entire galaxy, consisting of billions of stars. Astronomers studying distant objects call these stars “foreground stars” and they are often not very happy about them, as their bright light is contaminating the faint light from the more distant and interesting objects they actually want to study. Credits: ESA/Hubble & NASA #nasa #space #hubble #galaxy #star #universe #solarsystem #lizard #lacerta #constellation #light #telescope #supernova #spothubble
The magnetic field lines between a pair of active regions formed a beautiful set of swaying arches, seen in this footage captured by our Solar Dynamics Observatory on April 24-26, 2017. These arches, which form a connection between regions of opposite magnetic polarity, are visible in exquisite detail in this wavelength of extreme ultraviolet light. Extreme ultraviolet light is typically invisible to our eyes, but is colorized here in gold. This video covers almost two days of activity. Credits: NASA/SDO #nasa #space #solar #sun #sdo #solarobservatory #spacecraft #magneticfield #particles #energy
We did it! Our Cassini spacecraft successfully dove through the gap between Saturn and its rings – an area previously unexplored by any spacecraft! These unprocessed images show features in Saturn’s atmosphere from closer than ever before! These views were captured by our Cassini spacecraft during its first Grand Finale dive between the planet and its rings on April 26, 2017. As Cassini dove through the gap, it came within about 1,900 miles (3,000 kilometers) of Saturn’s cloud tops (where the air pressure is 1 bar – comparable to the atmospheric pressure of Earth at sea level) and within about 200 miles (300 kilometers) of the innermost visible edge of the rings. Credits: NASA/JPL-Caltech/Space Science Institute #nasa #space #cassini #spacecraft #saturn #grandfinale #atmosphere #solarsystem #planet #science
[Illustration] 'Iceball' planet discovered! Scientists have discovered a new planet with the mass of Earth, orbiting its star at the same distance that we orbit our sun. The planet is likely far too cold to be habitable for life as we know it, however, because its star is so faint. But the discovery adds to scientists' understanding of the types of planetary systems that exist beyond our own. This 'iceball' planet is the lowest-mass planet ever found through microlensing, a technique that facilitates the discovery of distant objects by using background stars as flashlights. When a star crosses precisely in front of a bright star in the background, the gravity of the foreground star focuses the light of the background star, making it appear brighter. A planet orbiting the foreground object may cause an additional blip in the star's brightness. In this case, the blip only lasted a few hours. This technique has found the most distant known exoplanets from Earth, and can detect low-mass planets that are substantially farther from their stars than Earth is from our sun. Credits: NASA/JPL-Caltech #nasa #space nasabeyond #astronomy #exoplanet #science
Cosmic Bubbles: This entrancing image shows a few of the tenuous threads that comprise a faint and wispy shell of gas located 5,200 light-years away. This large bubble-like structure wrapped around an extremely large, bright type of star known as a Wolf-Rayet Star - this particular star is called EZ Canis Majoris. These type of stars are among the brightest and most massive stars in the universe, tens of times more massive than our own sun, and they represent the extremes of stellar evolution. Thick winds continually poured off the progenitors of such stars, flooding their surroundings and draining the outer layers of the Wolf-Rayet stars. The fast wind of a Wolf-Rayet star therefore sweeps up the surrounding material to form bubbles of gas. Beautiful as these cosmic bubbles are, they are fleeting. The same stars that form them will also cause their death, eclipsing and subsuming them in violent supernova explosions. Credit: ESA/Hubble & NASA #nasa #hst #hubble #esa #star #astronomy #nasabeyond #science
Congrats, Peggy! Flight Director Brian Smith, Capcom astronaut Jessica Meir along with astronaut Jeff Williams monitor activities in Mission Control as President Donald Trump, First Daughter Ivanka Trump and NASA astronaut Kate Rubins make a special Earth-to-space call from the Oval Office to personally congratulate NASA astronaut Peggy Whitson for her record-breaking stay aboard the International Space Station ( @ISS). Whitson officially set the U.S. record for most cumulative days in space. She is the first woman to command the space station twice, and holds the record for most spacewalks conducted by a female astronaut. Photo Credit: NASA/Robert Markowitz #nasa #space #iss #potus #trump #president #whitehouse #congratspeggy
Cascading Loops: An active region that had just rotated into view blasted out a coronal mass ejection, which was immediately followed by a bright series of post-coronal loops seeking to reorganize that region's magnetic field (April 19, 2017). We have observed this phenomenon numerous times, but this one was one of the longest and clearest sequences we have seen in years. The bright loops are actually charged particles spinning along the magnetic field lines. The action was captured in a combination of two wavelengths of extreme ultraviolet light over a period of about 20 hours. Credit: Solar Dynamics Observatory, NASA #nasa #space #sun #nasabeyond #cme #sunscience #science
For us here at NASA, Earth Day is every day! With a fleet of spacecraft orbiting our home planet collecting data on everything from the air we breathe to natural disasters that impact our lives, Earth is always in focus. Join us as we celebrate our home with beautiful views from our unique vantage point of space. Image Credit: NASA #nasa #earth #earthday #space #science
Behold, two spiral galaxies! Astronomers used the Hubble Space Telescope to take a portrait of a stunning pair of spiral galaxies. This starry pair offers a glimpse of what our Milky Way galaxy would look like to an outside observer. These galaxies look quite different because we see them angled at different positions on the sky. They are actually very similar in terms of their structure and contents.` Both galaxies are approximately 55 million light-years away and reside in a cluster of nearly 2,000 galaxies. A typical spiral galaxy has arms of young stars that wind outward from its center. The bright arms are regions of intense star formation. Such galaxies have a central bulge and are surrounded by a faint halo of stars. Many spiral galaxies also have bars that extend from the central bulge to the arms. Credits: NASA, ESA, and M. Mutchler (STScI) #nasa #hubble #space #hst #galaxy #galaxies #stars #astronomy #science
NASA astronaut Jack Fischer ( @astro2fish) and cosmonaut Fyodor Yurchikhin of the Russian space agency Roscosmos launched into orbit to begin their four and a half month mission on the International Space Station. After a six-hour flight, their Soyuz arrived at the International Space Station ( @ISS) at 9:18 a.m. EDT Thursday, where the two new crew members joined Commander Peggy Whitson of NASA and Flight Engineers Oleg Novitskiy of Roscosmos and Thomas Pesquet of ESA (European Space Agency). The crew members will conduct approximately 250 science investigations in fields such as biology, Earth science, human research, physical sciences and technology development. Photo Credit: NASA/Aubrey Gemignani #nasa #space #astronauts #iss #soyuz
The edge of Jupiter: This enhanced color Jupiter image, taken by the JunoCam imager on our Juno spacecraft, showcases several interesting features on the apparent edge (limb) of the planet. Prior to Juno's fifth flyby over Jupiter's mysterious cloud tops, members of the public voted on which targets JunoCam should image. This picture captures not only a fascinating variety of textures in Jupiter's atmosphere, it also features three specific points of interest: "String of Pearls," "Between the Pearls," and "An Interesting Band Point." Also visible is what's known as the STB Spectre, a feature in Jupiter's South Temperate Belt where multiple atmospheric conditions appear to collide. Credits: NASA/JPL-Caltech/SwRI/MSSS/Bjorn Jonsson #nasa #space #jupiter #juno #solarsystem #astronomy #science
Arrhythmic beating of a black hole heart: At the center of the Centaurus galaxy cluster, there is a large elliptical galaxy called NGC 4696. Deeper still, there is a supermassive black hole buried within the core of this galaxy. New data from our Chandra X-ray Observatory and other telescopes has revealed details about this giant black hole. Image Credit: NASA #nasa #space #chandra #galaxy #blackhole #astronomy #science