Free Republic
Browse · Search
General/Chat
Topics · Post Article

Skip to comments.

Failed 1970s Venus Probe Could Crash to Earth This Year
space.com ^

Posted on 02/25/2019 7:38:40 AM PST by BenLurkin

Cosmos 482 was a sister probe to Venera 8,which in July 1972 became the second craft to land successfully on the surface of Venus, said Don Mitchell, who studies Soviet space history and has a keen interest in that country's Venus exploration missions.

But Cosmos 482 got stranded in an Earth parking orbit, Mitchell told Space.com. Some hardware from that failed flight — a heavy frame of tanks and equipment that was jettisoned — fell into Earth's atmosphere in rather short order. But some remained aloft.

Still adrift around Earth, making one lap every 112 minutes, is the wayward Cosmos 482 Venus entry capsule, a contraption built to withstand the heat of diving into that cloud-veiled planet's thick atmosphere. The errant Venus lander mass is 1,091 lbs. (495 kilograms) and carries significant thermal protection.

And this piece of space junk will likely survive its inevitable descent back to its home planet, experts said.

Cosmos 482 is in an orbit that swings it out from Earth over 1,700 miles (2,735 km) away, but the low point, the perigee of the orbit, is just 125 miles (200 km) above our planet. Another rough estimate suggests that what's left of the failed Venus probe might stay up for another 2.5 years, even with such a low perigee.

(Excerpt) Read more at space.com ...


TOPICS: Astronomy; Miscellaneous; Science
KEYWORDS: astronomy; cosmos482; donmitchell; russia; science; venera8; venus
Navigation: use the links below to view more comments.
first previous 1-2021-4041-45 last
To: Army Air Corps

Thanx


41 posted on 02/25/2019 10:06:42 AM PST by MHGinTN (A dispensation perspective is a powerful tool for discernment)
[ Post Reply | Private Reply | To 36 | View Replies]

To: BenLurkin

Sounds like a good target for testing ASAT weapons.


42 posted on 02/25/2019 10:36:26 AM PST by JimRed ( TERM LIMITS, NOW! Build the Wall Faster! TRUTH is the new HATE SPEECH.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Army Air Corps

The US Air Force Museum in Dayton once hosted an exhibit of Soviet space items. Fascinating stuff. But I seem to recall they used onboard reactors more often than not.


43 posted on 02/25/2019 12:07:40 PM PST by Buckeye McFrog
[ Post Reply | Private Reply | To 33 | View Replies]

To: Buckeye McFrog
But I seem to recall they used onboard reactors more often than not.

Not so much for their planetary probes. On the other hand, their RORSAT programme featured nuclear-powered spy satellites. This programme lanched 33 nuke-powered satellites. Thirty-one of those satellites used the BES-5 reactor, while two of them used the larger liquid-cooled TOPAZ reactor. Out of those 33 launches, there were five failures - three of these failures resulted in re-entry of the reactor core.
44 posted on 02/25/2019 12:22:14 PM PST by Army Air Corps (Four Fried Chickens and a Coke)
[ Post Reply | Private Reply | To 43 | View Replies]

To: Buckeye McFrog

Also, bear in mind, that the remaining cores are just parked in higher orbits that will decay.


45 posted on 02/25/2019 12:37:19 PM PST by Army Air Corps (Four Fried Chickens and a Coke)
[ Post Reply | Private Reply | To 43 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-45 last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
General/Chat
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson