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In April 2018, the Hubble Space
Telescope premiered this image

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of the Lagoon Nebula

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The image honors Hubble's 28th
year in orbit.

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Even after 27 years, Hubble
continues to further humanity's

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knowledge of the universe

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Here are several science
achievements from Hubble's

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latest year of observations.

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Within our own solar system,
Hubble observed Neptune's

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shrinking storm,

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an asteroid that slit in half
5000 years ago and is sprouting

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a comet tail,

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and the farthest active inbound
comet, nicknamed "K2."

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Exploring beyond our solar
system,

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Hubble astronomers discovered
many new characteristics of

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planets around other stars,

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from finding that water is
common in these "exoplanet"

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atmospheres,

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to finding different types of
atmospheres among large planets

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called "hot Jupiters."

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Hubble observed four Earth-sized
planets in the habitable zone of

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the star TRAPPIST-1.

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The observations showed no signs
of thick, puffy atmospheres on

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at least three planets,

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increasing the likelihood that
these are rocky, terrestrial

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planets.

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Hubble observed visible light
from the first identified source

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of gravitational waves, created
when two neutron stars collided.

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With Hubble data, astronomers
used graviational lensing to

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determine the mass of a white
dwarf star.

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Hubble observed a massive dying
star being reborn as a black

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hole.

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Hubble witnessed light from a
supernova explosion reflecting

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off a dust cloud, which created
this "light echo."

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Astronomers using Hubble refined
the Hubble constant.

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This revealed that the expansion
of our universe is accelerating

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even faster than expected.

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And Hubble premiered a
360-degree fly-through of the

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Orion Nebula...

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so that those of us down on
Earth can imagine flying amongst

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the stars.

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For more information about
Hubble's scientific discoveries

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www.nasa.gov/hubble
@NASAHubble