Now, astronomers have used Hubble to conduct the first search for atmospheres around temperate, Earth-sized planets beyond our solar system, uncovering clues that increase the chances of habitability on two exoplanets. They discovered that the exoplanets TRAPPIST-1b and TRAPPIST-1c, approximately 40 light-years away, are unlikely to have puffy, hydrogen-dominated atmospheres usually found on gaseous worlds. Those dense atmospheres act like a greenhouse, smothering any potential life. Observations from NASA's upcoming James Webb Space Telescope will help determine the full composition of these atmospheres and hunt for potential biosignatures, such as carbon dioxide and ozone, and methane.
The artist's impression shows a view of the HD 131399 system from the perspective of the giant planet, HD 131399Ab (lower left), orbiting in the system. The planet is about 16 million years old, making it one of the youngest exoplanets discovered to date – and one of just a handful of “directly imaged” planets. It is also one of the coldest and least massive exoplanets that have been directly imaged.
visualization software. Its well-designed interface and diverse modes of exploration make it a user-friendly and awe-inspiring public portal to the cosmos. Teachers and students use WWT for both expert-led and self-driven astronomical lessons/journeys. In addition, WWT's robust web resource connections and data tools make it a valuable professional astronomy research environment. In January 2016, the American Astronomical Society became the institutional home of this "Universe Information System" with plans to integrate the tool into research journals and encourage its use in education and public outreach.
In July's Public Lecture Series, Dr. Frank Summers of the Space Telescope Science Institute will describe and demo some of the myriad ways this software enables virtual and visual explorations of the universe. Visit http://hubblesite.org/about_us/public_talks/ for links to both live and previous lectures, or join us in the Space Telescope Science Institute auditorium, 3700 San Martin Drive, Baltimore, Md., 21218. The Public Lecture Series occurs on the first Tuesday of every month. Admission is free and free parking is available in the lot across the street.
Watch live on Youtube:https://www.youtube.com/watch?v=zTC084dm-Lo
The neutron star at the very center of the Crab Nebula has about the same mass as the sun but compressed into an incredibly dense sphere that is only a few miles across. Spinning 30 times a second, the neutron star shoots out detectable beams of energy that make it look like it's pulsating.
The NASA Hubble Space Telescope snapshot is centered on the region around the neutron star (the rightmost of the two bright stars near the center of this image) and the expanding, tattered, filamentary debris surrounding it. Hubble's sharp view captures the intricate details of glowing gas, shown in red, that forms a swirling medley of cavities and filaments. Inside this shell is a ghostly blue glow that is radiation given off by electrons spiraling at nearly the speed of light in the powerful magnetic field around the crushed stellar core.
Bright wisps are moving outward from the neutron star at half the speed of light to form an expanding ring. It is thought that these wisps originate from a shock wave that turns the high-speed wind from the neutron star into extremely energetic particles.
Host: Dr. Frank Summers
For more information: http://hubblesite.org/about_us/public_talks/
HubbleSite.org is the online home of NASA's Hubble Space Telescope. HubbleSite is produced by the Space Telescope Science Institute in Baltimore, MD, which conducts Hubble's science mission.
Nearly 400 years after Galileo first observed the heavens through a telescope, we continue to seek answers to age-old questions about the universe. And while the technology has evolved over the centuries, the inquiry remains essentially the same: What's out there, where did it come from, and what does it mean?
At the Space Telescope Science Institute (STScI), we're working hard to study and explain the once-unimaginable celestial phenomena now made visible by the Hubble Space Telescope's cutting-edge technology.
HubbleSite is produced by the Space Telescope Science Institute's Office of Public Outreach.