صور

Our Colorful Universe: Translating Cosmic Light

Our Colorful Universe: Translating Cosmic Light
Joseph DePasquale of the Space Telescope Science Institute

Vivid and fantastical images of the cosmos can amaze and astound both scientists and the public alike. Have you ever wondered how the data from the Hubble Space Telescope and other observatories are transformed into these celestial works of art? How is light beyond the visible spectrum presented and combined to create multi-wavelength masterpieces? And does the strange term “false color” mean that the images are not real? Join us for an engaging discussion exploring how these colorful cosmic images are created, and delve into the broader context of the history of our understanding of light.

Host: Dr. Frank Summers of the Space Telescope Science Institute

Recorded live on Tuesday, July 2, 2019, at the Space Telescope Science Institute in Baltimore, Maryland, U.S.A.

More information: https://hubblesite.org/resource-galle…

Tiny Stellar Islands in a Big Old Universe

Tiny Stellar Islands in a Big Old Universe
Trisha Ashley of the Space Telescope Science Institute

Galaxies are islands of stars, gas, and dark matter, the smallest of which are called dwarf galaxies. Although dwarf galaxies are the most numerous, astronomers are still trying to understand their structure, composition, and variety. Star formation in dwarf galaxies is especially important. What triggers star formation in dwarf galaxies? Why do some form a lot more stars? Join us to hear how these galaxies compare to our Milky Way galaxy and what makes them special!

Host: Dr. Alex Lockwood of the Space Telescope Science Institute

Recorded live on Tuesday, August 6, 2019, at the Space Telescope Science Institute in Baltimore, Maryland, U.S.A.

More information: www.stsci.edu/public-lectures

How Many Balloons Will Lift an iPhone XS? – Will it Survive?

I went on an adventure to see where 100 balloons will take my iPhone XS!

FACEBOOK:
https://www.facebook.com/techrax
TWITTER:

INSTAGRAM:
http://instagram.com/techrax

At the 2:07 mark I included the first and last few minutes of the iPhone recording. Video resumes at 7:40.

Music:
Cosmic Storm by A Himitsu https://soundcloud.com/a-himitsu
Creative Commons — Attribution 3.0 Unported— CC BY 3.0
http://creativecommons.org/licenses/b…
Music promoted by Audio Library https://youtu.be/U4wXUdhNxZk

Music: Whitesand – Eternity
Link: https://youtu.be/50Deyoe3cFY
Music provided by: xEpic Journey

What Happens If You Fill Up Propane Tank with iPhone XS?

The video is brought to you by Decluttr. Shop a range of refurbished phones at a fraction of the cost of new. Get 10% OFF with coupon code: TECHRAX10
https://www.decluttr.com/us/store?utm_source=youtube&utm_medium=social_influencer&utm_campaign=techrax-store-performance

We cut open a slot in a propane tank, put an iPhone XS in, sealed it shut and filled it up with propane for 24 hours. Will it survive?

FACEBOOK:
https://www.facebook.com/techrax
TWITTER:

INSTAGRAM:
http://instagram.com/techrax

Song: Diviners – Escape (feat. Rossy) [NCS Release]

Recycle Your Used Pulsars: Explaining the Extra Gamma-Radiation from the Central Milky Way

Recycle Your Used Pulsars: Explaining the Extra Gamma-Radiation from the Central Milky Way
Christopher Britt of the Space Telescope Science Institute

Gamma rays, the highest energy light in the electromagnetic spectrum, generally arise from extreme events. For over a decade, NASA’s Fermi Gamma-ray Space Telescope has mapped these energetic cosmic emissions and helped characterize their sources. A particular conundrum is found in the center of our Milky Way galaxy, which emits significantly more gamma-ray light than can be easily explained. Join us to probe the possible origins of this mysterious gamma radiation, from dark matter to ancient remnants of old dead stars, and explore a method to potentially solve this powerful puzzle.

Host: Dr. Frank Summers of the Space Telescope Science Institute

Recorded live on Tuesday, June 4, 2019, at the Space Telescope Science Institute in Baltimore, Maryland, U.S.A.

More information: https://hubblesite.org/resource-gallery/learning-resources/public-lecture-series

Constructing the Hertzsprung-Russell Diagram for Globular Star Cluster

A Hubble Space Telescope color image of the core of the globular star cluster Omega Centauri is used to construct a Hertzsprung-Russell diagram of the stellar populations in the cluster. When stars are sorted by brightness and color they can be used to create a graph that astronomers use to trace stellar evolution.

Read the news release: http://hubblesite.org/news_release/news/2010-28

Hubble Chronicles Brightening of Ring around an Exploded Star

This time-lapse video sequence of Hubble Space Telescope images reveals dramatic changes in a ring of material around the exploded star Supernova 1987A.

The images, taken from 1994 to 2016, show the effects of a shock wave from the supernova blast smashing into the ring. The ring begins to brighten as the shock wave hits it. The ring is about one light-year across.

Discovered in 1987, Supernova 1987A is the closest observed supernova to Earth since 1604. The exploded star resides 163,000 light-years away in the Large Magellanic Cloud, a satellite galaxy of our Milky Way.

Read the news release: http://hubblesite.org/news_release/news/2017-08