Parker probe completes fifth Venus flyby
The Parker Solar Probe on October 16th successfully completed its fifth flyby of Venus, designed to lower its solar orbit around the Sun.
At just after 5:30 a.m. EDT, moving about 15 miles (24 kilometers) per second, the spacecraft swooped 2,370 miles (3,814 kilometers) above Venus’ surface. Such gravity assists are essential to the mission to bring Parker Solar Probe progressively closer to the Sun; the spacecraft counts on the planet to reduce its orbital energy, which in turn allows it to travel closer to the Sun and measure the properties of the solar wind near its source.
This was the fifth of seven planned Venus gravity assists. The flyby reduced Parker Solar Probe’s orbital speed by about 6,040 miles per hour (9,720 kilometers per hour), and set it up for its 10th close pass (or perihelion) by the Sun, on Nov. 21.
Parker Solar Probe will break its own distance and speed records on that closest approach, when it comes approximately 5.3 million miles (8.5 million kilometers) from the Sun’s surface — some 1.2 million miles (1.9 million kilometers) closer than the previous perihelion on Aug. 13 – while reaching 101 miles (163 kilometers) per second, or 364,621 miles per hour. Assisted by two more Venus flybys, in August 2023 and November 2024, Parker Solar Probe will eventually come within 4 million miles (6.2 million kilometers) of the solar surface in December 2024.
That speed record, 364,621 miles per hour, is the fastest any human built object as ever traveled.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
The Parker Solar Probe on October 16th successfully completed its fifth flyby of Venus, designed to lower its solar orbit around the Sun.
At just after 5:30 a.m. EDT, moving about 15 miles (24 kilometers) per second, the spacecraft swooped 2,370 miles (3,814 kilometers) above Venus’ surface. Such gravity assists are essential to the mission to bring Parker Solar Probe progressively closer to the Sun; the spacecraft counts on the planet to reduce its orbital energy, which in turn allows it to travel closer to the Sun and measure the properties of the solar wind near its source.
This was the fifth of seven planned Venus gravity assists. The flyby reduced Parker Solar Probe’s orbital speed by about 6,040 miles per hour (9,720 kilometers per hour), and set it up for its 10th close pass (or perihelion) by the Sun, on Nov. 21.
Parker Solar Probe will break its own distance and speed records on that closest approach, when it comes approximately 5.3 million miles (8.5 million kilometers) from the Sun’s surface — some 1.2 million miles (1.9 million kilometers) closer than the previous perihelion on Aug. 13 – while reaching 101 miles (163 kilometers) per second, or 364,621 miles per hour. Assisted by two more Venus flybys, in August 2023 and November 2024, Parker Solar Probe will eventually come within 4 million miles (6.2 million kilometers) of the solar surface in December 2024.
That speed record, 364,621 miles per hour, is the fastest any human built object as ever traveled.
On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.
The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit. If you buy it from ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.
The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News
Event Horizon: “Why Venus May Have Life with Dr. Janusz Petkowski”
“Our view of the clouds of Venus may be severely incomplete. The multitude of atmospheric anomalies suggest unknown chemistry or maybe even life in the clouds of Venus…..”
https://www.youtube.com/watch?v=fFYR3kDyhu8
V101 Science: “This Is What The Surface Of Venus Sounds Like! Venera 14 Sound Recording 1982”
“Nearly 40 years ago Venera 14 landed on Venus and recorded the sound of its eerie, scorched surface. But what did it hear? Click of the video to find out!”
https://www.youtube.com/watch?v=P3Ife6iBdsU
08:04
“Venus is NOT a “Runaway” Greenhouse Effect!”
The Science Asylum
https://www.youtube.com/watch?v=Mgw-hMZi5eA
Mars and Venus Habitability with NASA Scientist Dr. Chris Colose
“A discussion the hypothetical habitability of Mars and Venus if they were to switch places. Thanks to Dr. Chris Colose from the NASA Goddard Institute for Space Studies for taking the time to speak with me.”
Nick Lucid
https://www.youtube.com/watch?v=xdc6lSh8guw&t=0s
00:00:00 Dr. Colose’s work
00:05:14 Introduction to Topic
00:08:10 Move Mars to Venus’s orbit now
00:11:33 Move Venus to Mar’s orbit now
00:19:40 Greenhouse Effect
00:31:15 Runaway Greenhouse Effect
00:40:50 If Mars formed in Venus’s Orbit
00:49:56 Faint Young Sun Paradox
00:54:30 Runaway Greenhouse on Mars
01:02:58 If Venus formed in Mars’s Orbit
01:11:04 End of Conversation
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