What is the risk of Asteroid 101955 Bennu?

Asteroid 101955 Bennu and Risk of Impacting Earth

101955 Bennu is a near-Earth asteroid that is classified as a potentially hazardous object.

It is a carbonaceous asteroid, meaning that it is composed of organic material.

Bennu has a mean diameter of 490 meters (1,610 feet) and a mass of 7.8 × 10^10 kilograms.

Bennu was discovered on September 11, 1999, by the Lincoln Near-Earth Asteroid Research (LINEAR) project.

It was originally given the provisional designation 1999 RQ36.

Bennu is named after the Egyptian god of rebirth and resurrection.

Bennu orbits the Sun in a highly elliptical orbit that takes it between the orbits of Earth and Mars.

It passes close to Earth about every six years.

In 2016, NASA launched the OSIRIS-REx spacecraft to visit Bennu.

The spacecraft arrived at Bennu in 2018 and spent two years studying the asteroid.

In October 2020, OSIRIS-REx collected a sample of Bennu’s surface material. The sample is scheduled to return to Earth in 2023.

Watch Asteroid Bennu’s surface revealed by NASA Spacecraft

Bennu is a valuable target for scientific study because it is a relatively primitive asteroid that has not been significantly altered by the effects of water or other planetary processes.

The sample collected by OSIRIS-Rex is expected to provide insights into the formation and early evolution of the solar system.

Potential impact on Earth

Bennu has a cumulative 1-in-1,750 chance of impacting Earth between 2178 and 2290. The greatest risk of impact is on September 24, 2182.

NASA is monitoring Bennu’s orbit to improve our understanding of the risk of impact.

The agency is also developing technologies to deflect asteroids that pose a threat to Earth.

Key facts about 101955 Bennu

Diameter: 490 meters (1,610 feet)
Mass: 7.8 × 10^10 kilograms
Orbit: Elliptical, between the orbits of Earth and Mars
Period: 437 days
Discovery date: September 11, 1999
Name: After the Egyptian god of rebirth and resurrection
Potential impact on Earth: 1-in-1,750 chance between 2178 and 2290

Chandrayaan-3: Boost for Indian space program

Chandrayaan-3 is the third lunar exploration mission by the Indian Space Research Organisation (ISRO).

It is scheduled to launch on July 14, 2023, from the Satish Dhawan Space Centre in Sriharikota, India.

The mission will consist of a lander and a rover. The lander will soft-land on the lunar surface and deploy the rover, which will explore the lunar surface. The mission will also carry a number of scientific instruments to study the Moon’s surface and atmosphere.

The main objectives of Chandrayaan-3 are to:

  • Soft-land on the lunar surface and deploy a rover.
  • Study the lunar surface and atmosphere.
  • Search for water ice on the Moon.
  • Demonstrate new technologies for future lunar missions.

Chandrayaan-3 is a follow-on mission to Chandrayaan-2, which was launched in 2019. Chandrayaan-2 successfully entered lunar orbit, but the lander crashed during the final descent. Chandrayaan-3 is designed to learn from the mistakes of Chandrayaan-2 and to successfully soft-land on the lunar surface.

The launch of Chandrayaan is a major milestone for the Indian space program. It will be India’s first attempt to soft-land on the Moon since Chandrayaan-2. The success of Chandrayaan-3 would be a major boost for the Indian space program and would help to put India at the forefront of lunar exploration.

Image credit

Indian Space Research Organisation (GODL-India), GODL-India, via Wikimedia Commons

Enceladus, Saturn’s moon, has life?

Optimistic research on “Life on Saturn’s Moon Enceladus”

  • New Evidence Suggests May Be Habitable

In a study published in the journal Nature Astronomy, scientists from the University of Nantes in France have found new evidence that suggests Enceladus may be habitable. The study looked at data from the Cassini spacecraft and found that the moon’s ocean is likely to be much saltier than previously thought. This is important because salt can help to protect life from harmful radiation.

  • Scientists Propose New Mission to Enceladus

A team of scientists from the University of California, Berkeley, has proposed a new mission to Enceladus. The mission, called Enceladus Life Finder, would use a robotic submarine to explore the moon’s ocean and search for signs of life. The mission is currently in the early planning stages, but it has the potential to be a major breakthrough in the search for life beyond Earth.

  • Enceladus’s Geysers May Be More Powerful Than Thought

A new study published in the journal Nature Geoscience has found that Enceladus’s geysers may be more powerful than previously thought. The study, which was led by scientists from the University of Arizona, found that the geysers could be erupting with as much as 100 times the water vapor as previously thought. This means that the geysers could be a major source of water for the moon’s ocean.

There is no definitive answer to the question of whether or not life exists on Saturn’s moon Enceladus. However, there is evidence that suggests that it may be habitable.

it is a small moon, about the size of the dwarf planet Pluto. It is covered in ice, but there is evidence that suggests that there is an ocean of liquid water beneath the ice. The water ocean is thought to be heated by tidal forces from Saturn, and it may contain hydrothermal vents, which are areas where hot water and chemicals rise from the ocean floor.

Hydrothermal vents are known to support life on Earth, and they may also support life on Enceladus. In 2005, the Cassini spacecraft discovered geysers that were erupting water vapor and ice particles into space. The geysers are thought to be coming from the ocean beneath the ice, and they may be providing a way for life to exchange materials with the outside environment.

In 2015, the Cassini spacecraft flew through one of it’s geysers and collected samples of the water vapor and ice particles. The samples were analyzed by scientists, and they found that they contained organic molecules, which are the building blocks of life.

The evidence suggests that it may be habitable, but there is no definitive proof that life exists on the moon. More research is needed to determine whether or not Enceladus is home to life.

There are other moons in the solar system that may be habitable. These include Jupiter’s moons Europa and Ganymede, and Saturn’s moon Titan. These moons also have liquid water beneath their icy surfaces, and they may also have hydrothermal vents.

The search for life beyond Earth is an exciting and important endeavor. The discovery of life on another world would have a profound impact on our understanding of the universe and our place in it.

Shatner recounts journey to space

‘I felt all the beauty of Earth’: Shatner recounts journey to space during Rosemont visit

William Shatner talked about his recent flight into space and other topics, from Star Trek to Shark Week, during his appearance Sunday at Wizard World Chicago, hosted by the Donald E. Stephens Convention Center in Rosemont. Steven Buyansky for the Daily Herald.

Also please check “What happened before Big Bang

source dailyherald.com