Jorn W Hansen - Explore the Universe with Jorn

Stellar Merger Model for GRB – Panel 3 Credits NASA, ESA, and A. Feild (STScI)

Discover the mysteries of the cosmos and how the universe works.For insightful explorations and cosmic understanding.Start your journey into the stars today!<a target="_blank" rel="noopener noreferrer nofollow" href="http://www.jwhdk.eu/">http://www.jwhdk.eu</a>

Artist's Impression of Disk Around a Neutron Star Caption: This illustration shows a neutron star (RX J0806.4-4123) with a disk of warm dust that produces an infrared signature as detected by NASA’s Hubble Space Telescope. The disk wasn’t directly photographed, but one way to explain the data is by hypothesizing a disk structure that could be 18 billion miles across. The disk would be made up of material falling back onto the neutron star after the supernova explosion that created the stellar remnant. Credits: NASA, ESA, and N. Tr’Ehnl (Pennsylvania State University)

Explore the Universe with Jorn

Learn the fundamental concepts of astronomy, from stars to galaxies, and understand the building blocks of the universe.

Astronomy Basics

Join guided sessions to observe celestial bodies using telescopes and learn how to identify constellations.

Stargazing Workshops

Understand the physical laws that govern space phenomena, including gravity, light, and black holes.

Physics of Space

Master the art of capturing stunning images of the night sky and celestial events with expert guidance.

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Astrophotography Courses

Dive into the origins and evolution of the cosmos, exploring theories about the Big Bang and the expanding universe.

Oldest Star in Solar Neighborhood Caption This is a Digitized Sky Survey image of the oldest star with a well-determined age in our galaxy. The aging star, cataloged as HD 140283, lies 190.1 light-years away. Credits Digitized Sky Survey (DSS), STScI/AURA, Palomar/Caltech, and UKSTU/AAO

Cosmology Insights

Explore the strange and fascinating world of quantum mechanics and its role in the fabric of the universe.

Quantum Universe

Explore the Universe with Jorn W Hansen

A Zoo of Galaxies Caption Gazing deep into the universe, NASA's Hubble Space Telescope has spied a menagerie of galaxies. Located within the same tiny region of space, these numerous galaxies display an assortment of unique characteristics. Credits NASA, ESA, and The Hubble Heritage Team (STScI/AURA); Acknowledgment: J. Blakeslee (JHU) and R. Thompson (University of Arizona)

Spiral Galaxy UGC 2885 Caption: This Hubble Space Telescope photograph showcases the majestic spiral galaxy UGC 2885, located 232 million light-years away in the northern constellation Perseus. The galaxy is 2.5 times wider than our Milky Way and contains 10 times as many stars. Credits: Image NASA, ESA, Benne Holwerda (University of Louisville)

PSZ1 G311.65-18.48 Caption: This NASA Hubble Space Telescope photo reveals a cosmic kaleidoscope of a remote galaxy, which has been split into multiple images by an effect called gravitational lensing. Credits: NASA, ESA, and E. Rivera-Thorsen (Institute of Theoretical Astrophysics Oslo, Norway)

Sample Frame from IMAX Film "Hubble: Galaxies Across Space and Time" Caption The IMAX short film "Hubble: Galaxies Across Space and Time" transforms images and data from NASA's Hubble Space Telescope into a voyage that sweeps viewers across the universe and back into cosmic history. Credits Credit: NASA, ESA and F. Summers (STScI)

Andromeda's Active Core Caption This artist's concept shows a view across a mysterious disk of young, blue stars encircling a supermassive black hole at the core of the neighboring Andromeda Galaxy (M31). Credits Credit: NASA, ESA and A. Schaller (for STScI)

Hubble M31 PHAT Mosaic Caption The largest NASA Hubble Space Telescope image ever assembled, this sweeping bird's-eye view of a portion of the Andromeda galaxy (M31) is the sharpest large composite image ever taken of our galactic next-door neighbor. Credits NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler

Comet-Like Object Falling Toward White Dwarf (Artist's Concept) Caption: This artist's concept shows a massive, comet-like object falling toward a white dwarf. New Hubble Space Telescope findings are evidence for a belt of comet-like bodies orbiting the white dwarf, similar to our solar system's Kuiper Belt. The findings also suggest the presence of one or more unseen surviving planets around the white dwarf, which may have perturbed the belt to hurl icy objects into the burned-out star. Credits: NASA, ESA, and Z. Levy (STScI)

Red Dwarf Flare Star (Artist's Illustration) Caption: Artist's Illustration of a Young Red Dwarf Stripping Away a Planet's Atmosphere. Violent outbursts of seething gas from young red dwarf stars may make conditions uninhabitable on fledgling planets. In this artist's rendering, an active, young, red dwarf (right) is stripping the atmosphere from an orbiting planet (left). Credits: NASA, ESA, and D. Player (STScI)

Starburst Cluster Shows Celestial Fireworks Caption Like a July 4 fireworks display, a young, glittering collection of stars looks like an aerial burst. Credits NASA, ESA, R. O'Connell (University of Virginia), F. Paresce (National Institute for Astrophysics, Bologna, Italy), E. Young (Universities Space Research Association/Ames Research Center), the WFC3 Science Oversight Committee, and the Hubble Heritage Team (STScI/AURA)

NASA Great Space Observatories Glimpse Faint Afterglow of Nearby Stellar Explosion Caption Intricate wisps of glowing gas float amid a myriad of stars in this image created by combining data from NASA's Hubble Space Telescope and Chandra X-ray Observatory. Credits NASA, ESA, and The Hubble Heritage Team (STScI/AURA); Acknowledgment: J.C. Green (Univ. of Colorado) and the Cosmic Origins Spectrograph (COS) GTO Team; NASA/CXO/SAO

Gallery

Hubble Legacy Field Crop Caption: Hubble's Spectacular Wide View of the Universe. This Hubble Space Telescope image represents a portion of the Hubble Legacy Field, one of the widest views of the universe ever made. Credits: NASA, ESA, G. Illingworth and D. Magee (University of California, Santa Cruz), K. Whitaker (University of Connecticut), R. Bouwens (Leiden University), P. Oesch (University of Geneva), and the Hubble Legacy Field team

Artist's Illustration of SN 2017ein Caption: Artist's Impression of Progenitor Star to a Type Ic Supernova. This is an artist's concept of a blue supergiant star that once existed inside a cluster of young stars in the spiral galaxy NGC 3938, located 65 million light-years away. It exploded as a supernova in 2017, and Hubble Space Telescope archival photos were used to locate the doomed progenitor star, as it looked in 2007. Credits: NASA, ESA, and J. Olmsted (STScI)

Caption This is an illustration of one of the most massive star clusters within our Milky Way Galaxy. The cluster is ablaze with the glow of 14 rare red supergiant stars. Credits NASA, ESA and A. Schaller (for STScI)

Cosmic Reef Caption: Hubble Reveals a Tapestry of Blazing Starbirth. This Hubble image shows how young, energetic, massive stars illuminate and sculpt their birthplace with powerful winds and searing ultraviolet radiation. Credits: NASA, ESA and STScI

Artist's Impression of a Kuiper Belt Object Caption: This is an artist's impression of a Kuiper Belt object (KBO), located on the outer rim of our solar system at a staggering distance of 4 billion miles from the Sun. Credits NASA, ESA, and G. Bacon (STScI) Kuiper Belt Objects Solar System

M51 Visualization Caption: This visualization of a spectacular spiral galaxy, called the Whirlpool Galaxy, appears in the “Deep Field” film. Based on a 90-megapixel image from the Hubble Space Telescope, the visualization sequence sweeps viewers past the swirling structure of dark dust lanes, yellowish older stars, bluish younger stars, and vibrant red star-forming regions. Credits: NASA, ESA, and F. Summers, J. DePasquale, and D. Player (STScI)

HDUV GOODS-North Field Caption: Astronomers using the ultraviolet vision of NASA’s Hubble Space Telescope have captured one of the largest panoramic views of the fire and fury of star birth in the distant universe. Credits: NASA, ESA, P. Oesch (University of Geneva), and M. Montes (University of New South Wales)

A Galactic Spectacle Caption A beautiful new image of two colliding galaxies has been released by NASA's Great Observatories. Credits NASA, ESA, SAO, CXC, JPL-Caltech, and STScI; Acknowledgment: J. DePasquale (Harvard-Smithsonian CfA), and B. Whitmore (STScI)

Milky Way Bulge Caption: Hubble Captures Glittering Crowded Hub of our Milky Way Galaxy. This Hubble Space Telescope image of a sparkling jewel box full of stars captures the heart of our Milky Way galaxy. Credits: Image - NASA, ESA, Tom M. Brown; Science Contact - NASA, ESA, Will Clarkson (University of Michigan–Dearborn), Annalisa Calamida (STScI), Kailash Sahu (STScI)

North American and Pelican nebulae mosaic

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Jorn's explanations about the universe are mind-opening and easy to understand. Highly recommended for anyone curious about how things really work.

I learned so much about the universe in a short time. Jorn's passion and knowledge make every session inspiring and insightful.

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NGC 2276 Wide-Field Caption: This pair of galaxies are close enough together they are in a "tug of war" as they pass close enough to feel each other's gravitational pull. Credits: Image - NASA, ESA, STScI, Adam Block (Steward Observatory)