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  2. History of the New York City Subway - Wikipedia

    en.wikipedia.org/wiki/History_of_the_New_York...

    The R62 in particular was the first New York City Subway car class built by a foreign manufacturer. [240] These were all delivered between 1983 and 1989. The R10, R14, R16, R17, R21, and R22 car classes all were retired with the deliveries of the R62/As and R68/As.

  3. List of space debris fall incidents - Wikipedia

    en.wikipedia.org/wiki/List_of_space_debris_fall...

    The larger piece of space debris had carbon fiber composite and honeycomb structure, weighing nearly 100 pounds (45 kg). It was part of the Axiom 3 Dragon trunk section that reentered on 26 February over that region. [57] [58] On 21 May 2024, a fragment of reentered space debris was found in Haywood County (North Carolina, US). The charred ...

  4. List of space debris producing events - Wikipedia

    en.wikipedia.org/wiki/List_of_space_debris...

    As of 2012 there were an estimated 500,000 pieces of debris in orbit, [4] with 300,000 pieces below 2000 km . [1] Of the total, about 20,000 are tracked. [ 1 ] Also, about sixteen old Soviet nuclear space reactors are known to have released an estimated 100,000 NaK liquid metal coolant droplets 800–900 km up, [ 5 ] which range in size from 1 ...

  5. Space junk is causing problems — and experts think it’s just ...

    www.aol.com/space-junk-causing-problems-experts...

    A record stay in earth’s orbit and a fine to Dish Network might have space debris in common.

  6. Kessler syndrome: How crowded satellite orbits could lead to ...

    www.aol.com/news/kessler-syndrome-crowded...

    RELATED STORY | Why Space Junk Is A Compounding Issue For Missions, Astronauts At its most extreme, Kessler syndrome may reach a self-perpetuating threshold that could render entire orbits ...

  7. Kessler syndrome - Wikipedia

    en.wikipedia.org/wiki/Kessler_syndrome

    The fragments can then hit other objects, producing even more space debris: if a large enough collision or explosion were to occur, such as between a space station and a defunct satellite, or as the result of hostile actions in space, then the resulting debris cascade could make prospects for long-term viability of satellites in particular low ...

  8. Collision avoidance (spacecraft) - Wikipedia

    en.wikipedia.org/wiki/Collision_avoidance...

    The 2009 satellite collision entirely obliterated both spacecraft and resulted in the creation of an estimated 1,000 new pieces of space debris larger than 10 cm (4 in) and many smaller ones. [ 2 ] There are other smaller bits of material in orbit around Earth that could also cause significant damage to satellites.

  9. Russian satellite breaks up in space, forces ISS astronauts ...

    www.aol.com/news/russian-satellite-blasts-debris...

    WASHINGTON (Reuters) -A defunct Russian satellite has broken up into more than 100 pieces of debris in orbit, forcing astronauts on the International Space Station to take shelter for about an ...