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This Day in History: Apollo 1 Bursts into Flames, Killing 3 American Astronauts

All three American astronauts on board died in the fire: Lt. Col. Virgil "Gus" Grissom, Lt. Col. Edward White II and Roger B. Chaffee

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In this undated photo made available by NASA, (L-R), veteran astronaut Virgil Grissom, first American spacewalker Ed White and rookie Roger Chaffee, stand for a photograph in Cape Kennedy, Florida, today Cape Canaveral. VOA
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US, Jan 27, 2017: Fifty years ago today, January 27, 1967, tragedy struck NASA’s proposed first manned flight of the Apollo capsule when a fire engulfed the craft during a routine test on the launchpad.

All three American astronauts on board died in the fire: Lt. Col. Virgil “Gus” Grissom, Lt. Col. Edward White II and Roger B. Chaffee.

The tragedy stunned the nation, and it temporarily stalled NASA’s push to meet then-president John F. Kennedy’s deadline to reach the lunar surface by the end of the decade

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A NASA probe and congressional hearings concluded previously unidentified fire hazards existed inside the capsule, and the subsequent decision to pressurize it entirely with oxygen created an extremely combustible environment. The hatch opened inward, which made it difficult for the crew to open it and escape.

After the deadly accident, hundreds of changes to the capsule were made, and NASA instituted myriad safety procedures. The redesigned capsules used a mixture of oxygen and nitrogen, reducing the fire risk. A new hatch was designed that could be opened in just five seconds.

Only 21 months later, NASA sent humans back into space aboard Apollo 7. And less than a year after that, Neil Armstrong and Buzz Aldrin landed Apollo 11 on the moon.

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To mark the 50th anniversary, NASA is holding a ceremony, which will be broadcast live on NASA television. (VOA)

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Scientists spot massive ice deposits on Mars

Recent observations by MRO's ground-penetrating Shallow Radar instrument revealed a buried ice layer that covers more ground than the state of New Mexico.

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Scientists found layers of ice on the surface of Mars. Wikimedia Commons
  • Recently, scientists have found layers of ice on the Martian land.
  • Scientists think this ice might be a useful source of water for future humans.
  • The researchers had researched 8 locations on the surface of Mars.

Scientists have unearthed thick and massive deposits of ice in some regions on Mars.

The images taken by the High-Resolution Imaging Science Experiment (HiRISE) camera aboard NASA’s Mars Reconnaissance Orbiter (MRO) showed the three-dimensional structure of massive ice deposits on Mars.

The ice sheets extend from just below the surface to a depth of 100 meters or more and appear to contain distinct layers.

It extending downward from depths as shallow as 1 to 2 meters below the surface, which could preserve a record of Mars’ past climate, the researchers noted in the journal Science.

This ice which was found can help scientists understand the climate history of Mars. IANS
This ice which was found can help scientists understand the climate history of Mars. IANS

“We expect the vertical structure of Martian ice-rich deposits to preserve a record of ice deposition and past climate,” said Colin M. Dundas, from the US Geological Survey.

“They might even be a useful source of water for future human exploration of the red planet,” Dundas added.

The researchers investigated eight locations on Mars and found thick deposits cover broad regions of the Martian mid-latitudes with a smooth mantle.

However, erosion in these regions creates scarps that expose the internal structure of the mantle.

The scarps are actively retreating because of sublimation of the exposed water ice.

The layers of ice can be used as water source by future humans on Mars, VOA
The layers of ice can be used as water source by future humans on Mars, VOA

The ice deposits likely originated as snowfall during Mars’ high-obliquity periods and have now compacted into massive, fractured, and layered ice.

Previous researchers have revealed that the Red Planet harbours subsurface water ice.

Recent observations by MRO’s ground-penetrating Shallow Radar instrument revealed a buried ice layer that covers more ground than the state of New Mexico.

NASA’s Phoenix lander had also dug up some ice near the Martian north pole in 2008, however, it is not clear if that is part of the big sheet. IANS