This New NASA/ESA Hubble Space Telescope Image Shows Three Of Jupiter’s Largest Moons Parade (seems

some of my favourite absolutely SICK facts about the trappist-1 exoplanets: - theyre all very close to one another and to their star, so the length of a year on them varies from 1 to 20 DAYS - since they’re so close, the star appears a lot bigger than our sun from earth, and from one planet you could easily see the rest, some would even appear bigger than the moon from earth. you could literally see the surface of another planet with a naked eye!!! - they’re tidally locked to their star like our moon is locked to earth, meaning only one side of a planet ever faces the star, and on the other side it’s always night. the sun never sets or rises on any of the planets - the star is red, so the sunlight is red/orange, meaning if, for example, plants were to grow there, they could be black and that’s just what we know now, imagine how much cool stuff we have yet to discover about the trappist-1 system

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Answer Time from Space!

I’m on day 321 of my #YearInSpace, and today I surpassed 500 days in space total. Let’s chat! Sat., Feb. 13 at 1:45 p.m. ET. 

T-2 hours - JASON-3 and Falcon 9 stand tall on the west coast. For the second time in its history, a SpaceX Falcon 9 v1.1 rocket stands at Vandenberg Air Force Base’s SLC-4E ready for launch. The 224 foot tall rocket will carry the joint NASA/NOAA JASON-3 satellite to study Earth’s oceans. Of the 20 flights of the Falcon 9 to date, all but one has occurred from Cape Canaveral’s SLC-40. The inaugural flight of Falcon 9 v1.1, Cassiope in September 2013, was also the debut of the vehicle on the west coast. The JASON-3 mission will see the final v1.1 Falcon 9 performing the vehicle’s second west coast flight. Liftoff will occur in the middle of a 30-second launch window, at 1:42 pm EST (10:42 am PST). NASA TV coverage started at 11 am EST. Watch the launch live here. p/c: SpaceX/NASA

About to do some comet observing.

Scientists are getting closer to finding the ninth planet

California Institute of Technology scientists shocked the world when they announced the possible existence of a ninth planet in our solar system earlier this year. The only problem is the finding is based on a mathematical model, not on direct observation. The planet orbits so far out on the fringes of our solar system that it likely takes up to 20,000 years to make it around the sun. Spotting it will be like looking for a needle in a haystack. But that haystack just got a bit smaller.

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Comet PanSTARRS and the Helix Nebula : Its rare that such different objects are imaged so close together. Such an occasion is occurring now, though, and was captured two days ago in combined parallel exposures from the Canary Islands of Spain. On the lower right, surrounded by a green coma and emanating an unusually split blue ion tail diagonally across the frame, is Comet C/2013 X1 . This giant snowball has been falling toward our Sun and brightening since its discovery in 2013. Although Comet PannSTARRS is a picturesque target for long-duration exposures of astrophotography, it is expected to be only barely visible to the unaided eye when it reaches its peak brightness in the next month. On the upper left, surrounded by red-glowing gas, is the also-picturesque Helix Nebula. At 700 light years distant, the Helix is not only much further away than the comet, but is expected to retain its appearance for thousands of years. via NASA

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Gravitational lensing

“Spacetime tells matter how to move; matter tells spacetime how to curve”: when spacetime is distorted by very massive objects, it can create a lensing effect, distorting light coming from the source. Here are some images capturing this effect.

All images from NASA/ESA & Hubble

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hubble’s panorama of the carina nebula, some 7500 light years away from earth, and about fifty light years in length here. stars old and new illuminate clouds of cosmic dust and gas, like the clumping hydrogen from which they were born. 

the top star seen at the bisection of the first two panels, part of the eta carinae binary star system (most stars are in binary systems), is estimated  to be more than a hundred times the mass of the sun - large enough to go supernoava in about a million years. 

it also produces four million times as much light as the sun, and was once the second brightest star in the night sky. but surrounding dust and gas has dimmed our view of the star, though it’s still visible in the night sky to all but those in the most light polluted cities.

the fifth panel shows ‘the mystic mountain,’ where nascent stars in the dust cloud are spewing hot ionized gas and dust at 850,000 miles an hour. eventually, the ultraviolet radiation from these stars will blow away the dust, leaving visible the stars, like the cluster seen at the top of the panel, which were formed only half a million years ago.