SpaceX is targeting Wednesday, May 15 for the launch of 60 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. SpaceX’s Starlink is a next-generation satellite network capable of connecting the globe, especially reaching those who are not yet connected, with reliable and affordable broadband internet services.
The launch window opens at 10:30 p.m. EDT on May 15, or 2:30 UTC on May 16, and closes at 12:00 a.m. on May 16, or 4:00 UTC. A backup launch window opens on Thursday, May 16 at 10:30 p.m. EDT, or 2:30 UTC on May 17, and closes at 12:00 a.m. on May 17, or 4:00 UTC. Falcon 9’s first stage for this mission previously supported the Telstar 18 VANTAGE mission in September 2018 and the Iridium-8 mission in January 2019.
Following stage separation, SpaceX will attempt to land Falcon 9’s first stage on the “Of Course I Still Love You” droneship, which will be stationed in the Atlantic Ocean. Approximately one hour and two minutes after liftoff, the Starlink satellites will begin deployment at an altitude of 440km. They will then use onboard propulsion to reach an operational altitude of 550km. SpaceX designed Starlink to connect end users with low latency, high bandwidth broadband services by providing continual coverage around the world using a network of thousands of satellites in low Earth orbit. To manufacture and launch a constellation of such scale, SpaceX is using the same rapid iteration in design approach that led to the successes of Falcon 1, Falcon 9, Falcon Heavy, and Dragon.
As such, Starlink’s simplified design is significantly more scalable and capable than its first experimental iteration. With a flat-panel design featuring multiple high-throughput antennas and a single solar array, each Starlink satellite weighs approximately 227kg, allowing SpaceX to maximize mass production and take full advantage of Falcon 9’s launch capabilities.
To adjust position on orbit, maintain intended altitude, and deorbit, Starlink satellites feature Hall thrusters powered by krypton. Designed and built upon the heritage of Dragon, each spacecraft is equipped with a Startracker navigation system that allows SpaceX to point the satellites with precision. Importantly, Starlink satellites are capable of tracking on-orbit debris and autonomously avoiding collision. Additionally, 95 percent of all components of this design will quickly burn in Earth’s atmosphere at the end of each satellite’s lifecycle—exceeding all current safety standards—with future iterative designs moving to complete disintegration.
This mission will push the operational capabilities of the satellites to the limit. SpaceX expects to encounter issues along the way, but our learnings here are key to developing an affordable and reliable broadband service in the future. Launch webcast will go live about 15 minutes before liftoff at spacex.com/webcast High-resolution photos will be posted at flickr.com/spacex May 2019 spacex.com MISSION TIMELINE (all times approximate) - 00:38:00 SpaceX Launch Director verifies go for propellant load - 00:35:00 RP-1 (rocket grade kerosene) loading underway - 00:35:00 1st stage LOX (liquid oxygen) loading underway - 00:16:00 2nd stage LOX loading underway - 00:07:00 Falcon 9 begins engine chill prior to launch - 00:01:00 Command flight computer to begin final prelaunch checks - 00:01:00 Propellant tank pressurization to flight pressure begins - 00:00:45 SpaceX Launch Director verifies go for launch - 00:00:03 Engine controller commands engine ignition sequence to start - 00:00:00 Falcon 9 liftoff 00:01:13 Max Q (moment of peak mechanical stress on the rocket) 00:02:31 1st stage main engine cutoff (MECO) 00:02:34 1st and 2nd stages separate 00:02:41 2nd stage engine starts 00:03:33 Fairing deployment 00:06:43 1st stage entry burn complete 00:08:17 1st stage landing 00:08:46 2nd stage engine cutoff (SECO-1) 00:46:11 2nd stage engine restarts 00:46:14 2nd stage engine cutoff (SECO-2) 01:02:14 Starlink satellites begin deployment LAUNCH FACILITY SpaceX’s SLC-40 at Cape Canaveral Air Force Station is a world-class launch site that builds on a strong heritage. The site, located at the north end of Cape Canaveral Air Force Station, was used for many years to launch Titan rockets, among the most powerful in the U.S. fleet.
SpaceX took over the facility in May 2008. The center of the complex is composed of the concrete launchpad and flame diverter system. Surrounding the pad are propellant storage tanks, four lightning towers, and the integration hangar. Before launch, Falcon 9’s stages and payload are housed inside the hangar. The payload is mated to the Falcon 9 inside SLC-40’s hangar on the transporter erector. The rocket and payload are then rolled out from the hangar to the launch pad and lifted to a vertical position.
WASHINGTON, April 23, 2019 /HalcyonTV/ -- NASA's Mars InSight lander has measured and recorded for the first time ever a likely "marsquake."
The faint seismic signal, detected by the lander's Seismic Experiment for Interior Structure (SEIS) instrument, was recorded on April 6, the lander's 128th Martian day, or sol. This is the first recorded trembling that appears to have come from inside the planet, as opposed to being caused by forces above the surface, such as wind. Scientists still are examining the data to determine the exact cause of the signal.
"InSight's first readings carry on the science that began with NASA's Apollo missions," said InSight Principal Investigator Bruce Banerdt of NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California. "We've been collecting background noise up until now, but this first event officially kicks off a new field: Martian seismology!"
The new seismic event was too small to provide solid data on the Martian interior, which is one of InSight's main objectives. The Martian surface is extremely quiet, allowing SEIS, InSight's specially designed seismometer, to pick up faint rumbles. In contrast, Earth's surface is quivering constantly from seismic noise created by oceans and weather. An event of this size in Southern California would be lost among dozens of tiny crackles that occur every day.
"The Martian Sol 128 event is exciting because its size and longer duration fit the profile of moonquakes detected on the lunar surface during the Apollo missions," said Lori Glaze, Planetary Science Division director at NASA Headquarters.
NASA's Apollo astronauts installed five seismometers that measured thousands of quakes while operating on the Moon between 1969 and 1977, revealing seismic activity on the Moon. Different materials can change the speed of seismic waves or reflect them, allowing scientists to use these waves to learn about the interior of the Moon and model its formation. NASA currently is planning to return astronauts to the Moon by 2024, laying the foundation that will eventually enable human exploration of Mars.
InSight's seismometer, which the lander placed on the planet's surface on Dec. 19, 2018, will enable scientists to gather similar data about Mars. By studying the deep interior of Mars, they hope to learn how other rocky worlds, including Earth and the Moon, formed.
Three other seismic signals occurred on March 14 (Sol 105), April 10 (Sol 132) and April 11 (Sol 133). Detected by SEIS' more sensitive Very Broad Band sensors, these signals were even smaller than the Sol 128 event and more ambiguous in origin. The team will continue to study these events to try to determine their cause.
Regardless of its cause, the Sol 128 signal is an exciting milestone for the team.
"We've been waiting months for a signal like this," said Philippe Lognonné, SEIS team lead at the Institut de Physique du Globe de Paris (IPGP) in France. "It's so exciting to finally have proof that Mars is still seismically active. We're looking forward to sharing detailed results once we've had a chance to analyze them."
Most people are familiar with quakes on Earth, which occur on faults created by the motion of tectonic plates. Mars and the Moon do not have tectonic plates, but they still experience quakes – in their cases, caused by a continual process of cooling and contraction that creates stress. This stress builds over time, until it is strong enough to break the crust, causing a quake.
Detecting these tiny quakes required a huge feat of engineering. On Earth, high-quality seismometers often are sealed in underground vaults to isolate them from changes in temperature and weather. InSight's instrument has several ingenious insulating barriers, including a cover built by JPL called the Wind and Thermal Shield, to protect it from the planet's extreme temperature changes and high winds.
SEIS has surpassed the team's expectations in terms of its sensitivity. The instrument was provided for InSight by the French space agency, Centre National d'Études Spatiales (CNES), while these first seismic events were identified by InSight's Marsquake Service team, led by the Swiss Federal Institute of Technology.
"We are delighted about this first achievement and are eager to make many similar measurements with SEIS in the years to come," said Charles Yana, SEIS mission operations manager at CNES.
JPL manages InSight for NASA's Science Mission Directorate. InSight is part of NASA's Discovery Program, managed by the agency's Marshall Space Flight Center in Huntsville, Alabama. Lockheed Martin Space in Denver built the InSight spacecraft, including its cruise stage and lander, and supports spacecraft operations for the mission.
A number of European partners, including CNES and the German Aerospace Center (DLR), support the InSight mission. CNES provided the SEIS instrument to NASA, with the principal investigator at IPGP. Significant contributions for SEIS came from IPGP; the Max Planck Institute for Solar System Research in Germany; the Swiss Federal Institute of Technology (ETH Zurich) in Switzerland; Imperial College London and Oxford University in the United Kingdom; and JPL. DLR provided the Heat Flow and Physical Properties Package (HP3) instrument, with significant contributions from the Space Research Center of the Polish Academy of Sciences and Astronika in Poland. Spain's Centro de Astrobiología supplied the temperature and wind sensors.
Listen to audio of this likely marsquake at:
For more information about InSight, visit:
For more information about the agency's Moon to Mars activities, visit
Promo.com is changing the landscape of the $103 billion video marketing industry, helping SMBs compete with big brands' video ad budgets
TEL AVIV, Israel, April 8, 2019 /HalcyonTV/ -- Promo.com, the world's leading video creation platform, formerly known as Slidely, is now officially a key Google partner on YouTube's new creative directory.
As a YouTube creative partner, Promo.com is among a trained and trusted group of video production platforms empowering businesses of all sizes to create effective YouTube video ads. This means that Promo.com's video ads are compatible with YouTube best practices and meet the highest of standards. Promo.com's unique ready-to-use templates are pre-tested and optimized to achieve superior results with YouTube ad campaigns.
Promo.com's breakthrough service has changed the landscape of video content creation, and is helping both businesses and agencies to easily create unlimited professional videos to promote anything online effectively.
YouTube has over 2 billion users, and users now watch over 200 million hours of YouTube on TV screens every day. Globally, more than 70% of YouTube watchtime happens on mobile devices. This makes YouTube an extremely attractive channel for advertisers and businesses of all sizes looking to grow their audiences.
WASHINGTON, March 27, 2019 /PRNewswire/ HalcyonTV-- In celebration of the 50th anniversary of the first moon landing on July 20, 1969, the U.S. Postal Service is pleased to reveal two stamp designs commemorating that historic milestone. Additional details are coming about the date, time and location for the first-day-of issue ceremony.
One stamp features a photograph of Apollo 11 astronaut Buzz Aldrin in his spacesuit on the surface of the moon. The image was taken by astronaut Neil Armstrong. The other stamp, a photograph of the moon taken in 2010 by Gregory H. Revera of Huntsville, AL, shows the landing site of the lunar module in the Sea of Tranquility. The site is indicated on the stamp by a dot. The selvage includes an image of the lunar module.
Art director Antonio Alcalá designed the stamp art.
The Postal Service receives no tax dollars for operating expenses and relies on the sale of postage, products and services to fund its operations.
'Good Night Stories for Rebel Girls: The Podcast' Launches Its Second Season, Featuring All New Celebrity Narrators and Immersive Adventures
Renowned philanthropist Priscilla Chan, "One Day at a Time" star Justina Machado, and "Orange Is the New Black" actress Jackie Cruz join Season Two of the popular fairy tale podcast that inspires millions of girls and women worldwide.
LOS ANGELES, March 13, 2019 /PRNewswire/HalcyonTV -- From award-winning media company, Timbuktu Labs, Good Night Stories for Rebel Girls: the Podcast is back with Season Two, diving into the lives of the real-life heroes featured in both volumes of the book series, Good Night Stories for Rebel Girls. Season One of the podcast was a phenomenal success, with over one million downloads, features in the top charts of six countries, and a mention in Time Magazine's list of the "50 Best Shows to Listen to Right Now."
Good Night Stories for Rebel Girls: The Podcast is a fairy tale podcast about the extraordinary women who inspire us. The new season features a new cast of eleven contemporary female narrators. Listeners will join renowned philanthropist Priscilla Chan as she tells the story of Ruth Bader Ginsburg becoming a tour-de-force on the Supreme Court of the United States. Justina Machado—star of popular shows One Day at a Time and Jane, the Virgin—relates the legacy of Celia Cruz, the Queen of Salsa; and Orange Is the New Black actress Jackie Cruz recounts the bravery of the Mirabel Sisters, freedom fighters from the Dominican Republic. Additionally, mini-episodes feature interviews with each narrator so that the audience can learn more about the women who are changing the world today. These interviews, conducted by listeners, are released every other week.
Elena Favilli—CEO of Timbuktu Labs, the company that created Good Night Stories for Rebel Girls—says, "The podcast is about creating a rich bedtime experience for girls that will allow them to dream without limits. I hope that the remarkable women we feature give girls all over the world the power and confidence to make their wildest dreams a reality."
Good Night Stories for Rebel Girls, the book series, has been inspiring millions of girls and women around the world to dream bigger, aim higher, and fight harder. The mission is simple: to empower the next generation by helping them see the Rebel Girls all around them. The women featured in the books are from every corner of the world; they are of different ages; they are past and present heroes; their achievements are varied. More than 3.8 million books have been sold and the series is the highest funded publishing project in crowdfunding history. Since initial publication, the books have been translated into nearly 50 languages and are available in over 70 countries worldwide.
About Good Night Stories for Rebel Girls:
"Good Night Stories for Rebel Girls" is a two-volume collection, each comprised of 100 stories of inspirational women who have changed the world. Find "Good Night Stories for Rebel Girls" online (rebelgirls.co), on Facebook (Facebook.com/rebelgirls), Instagram (@RebelGirlsBook), and Twitter (@RebelGirlsBook).