Watch Live @ 7pm ET: LIGO Scientist Discusses Epic Gravitational Wave Finds

Gabriela González talks about the LIGO Collaboration’s gravitational-wave discoveries and how they advance our understanding of the universe in a special public lecture this evening (Oct. 23) hosted by the Perimeter Institute for Theoretical Physics. Watch live in the window above at 7 p.m. EDT (2300 GMT), courtesy of the Perimeter Institute, or directly via the Institute.

From The Perimeter Institute:

“Albert Einstein predicted a century ago the existence of gravitational waves – ripples in the fabric of spacetime moving at the speed of light. It was believed that these ripples were so faint that no experiment would ever be precise enough to detect them. But in September 2015, LIGO did exactly that. The teams working with the Laser Interferometer Gravitational-wave Observatory (LIGO) detectors in Louisiana and Washington measured a loud gravitational wave signal as it traveled through the Earth after a billion-year journey from the violent merger of two black holes.

“Since that first detection, scientists have measured many more gravitational waves, including a signal produced by colliding neutron stars captured by LIGO and the Virgo detector in Europe in 2017. That cataclysm also generated electromagnetic waves – light – detected by numerous other telescopes, and helped scientists understand how gold is created in deep space.

“In a special public lecture webcast at Perimeter Institute on October 23, 2019, Gabriela González will provide a first-hand account of LIGO’s century-in-the-making breakthrough, and explain observations made as recently as this year. González, a professor of physics and astronomy at Louisiana State University and former spokesperson of the LIGO collaboration, will take the audience on a journey to some of the universe’s most violent places, and explain how such distant events can lead to a very bright future here on Earth.”

Wednesday, Oct. 23

  • 8:30 a.m. – Heads of Emerging Agencies
  • 1:30 p.m. – Clipper Exploring Europa

Online or Social Media

2 to 3 p.m. – Reddit AMA on international collaboration in space. People from around the world will be able to submit their questions to learn about international collaboration on missions such as the International Space Station, the Hubble Space Telescope, and Artemis.

Participants include:

  • Jacob Bleacher, chief exploration scientist of NASA’s Advanced Exploration Systems
  • Alvin Drew, NASA astronaut
  • Phillippe Berthe, European Service Module manager at the European Space Agency

Friday, Oct. 25

  • 8:30 a.m. – Late Breaking News Session

From NASA: 

IAC Public Day
IAC will open its doors to the public at 7:30 a.m. Friday, Oct. 25, with programming beginning at 8:30 a.m. For more information, visit:

In addition to online and TV coverage, NASA will have a presence in the exhibit hall, in booth 348, where agency experts will be available throughout the conference to share information and answer questions about NASA programs and activities, including Artemis. The NASA exhibit will also feature a Moon rock, a touchable Mars meteorite, a 1/10 scale model of the Mars 2020 rover and a model of the Gateway, which will orbit the Moon in support of human missions to the surface, with reusable lander elements for decades to come.

Beyond the main NASA exhibit, visitors to IAC can also see the Driven to Explore trailer, the 1:4 scale mockup of the Orion space capsule, the RS-25 engine – located between the main NASA Exhibit and Aerojet Rocketdyne – and a lively presence by NASA’s Office of STEM Engagement.

Stay involved throughout the week by using the hashtags #JoinArtemis and #IAC2019 and submitting your questions using #AskNASA.

For more information about NASA’s programs and activities, visit:

Live HD Views of Earth from Space

You can watch live, high-definition views of Earth from the International Space Station thanks to NASA’s High Definition Earth Viewing experiment (HDEV). This live video provides alternating views from four of the station’s external cameras nearly 24/7, with the exception of regular and temporary dropouts that occur when the station switches its connection between different communications satellites. Watch it live in the window above, courtesy of NASA TV.

From NASA:

“Behold, the Earth! See live views of Earth from the International Space Station coming to you by NASA’s High Definition Earth Viewing (HDEV) experiment.

“While the experiment is operational, views will typically sequence through the different cameras. If you are seeing a black image, the Space Station is on the night side of the Earth. If you are seeing an image with text displayed, the communications are switching between satellites and camera feeds are temporarily unavailable. Between camera switches, a black & gray slate will also briefly appear.

“The experiment was activated on April 30, 2014 and is mounted on the External Payload Facility of the European Space Agency’s Columbus module. This experiment includes several commercial HD video cameras aimed at the Earth which are enclosed in a pressurized and temperature controlled housing. To learn more about the HDEV experiment, visit:

“Please note: The HDEV cycling of the cameras will sometimes be halted, causing the video to only show select camera feeds. This is handled by the HDEV team, and is only scheduled on a temporary basis. Nominal video will resume once the team has finished their scheduled event.”

‘ISS Live!’ Tune in to the International Space Station

Find out what the astronauts and cosmonauts aboard the International Space Station are up to by tuning in to the “ISS Live” broadcast. Hear conversations between the crew and mission controllers on Earth and watch them work inside the U.S. segment of the orbiting laboratory. When the crew is off duty, you can enjoy live views of Earth from Space. You can watch and listen in the window below, courtesy of NASA.

“Live video from the International Space Station includes internal views when the crew is on-duty and Earth views at other times. The video is accompanied by audio of conversations between the crew and Mission Control. This video is only available when the space station is in contact with the ground. During ‘loss of signal’ periods, viewers will see a blue screen.

“Since the station orbits the Earth once every 90 minutes, it experiences a sunrise or a sunset about every 45 minutes. When the station is in darkness, external camera video may appear black, but can sometimes provide spectacular views of lightning or city lights below.”

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