First Photos from James Webb Space Telescope to be Released on July 12th

Posted on by onespaceman2000
Image (Credit): Artistic image with the JWST mirrors. (NASA)

NASA recently announced, in partnership with the European Space Agency and the Canadian Space Agency, that the first photos from the James Webb Space Telescope will be released from NASA’s Goddard Space Flight Center via a televised broadcast beginning at 10:30 a.m. EDT on Tuesday, July 12, 2022. The first images will also be posted here.

All of this follows the recent micrometeroid incident. NASA has been pretty quiet since reporting on the initial damage, though the pictures appear to be arriving as expected, so that is good news.

In terms of any future repairs to the JWST, a NASA Q&A with Paul Geithner, the deputy project manager – technical for James Webb Space Telescope, gives us some idea about the difficulties of such a mission:

​Q: Webb was not designed to be serviced, but could it eventually be repaired or refueled during a robotic service mission?

Paul: Conceivably, some robotic servicing of Webb could be possible. A robot could grapple Webb at the same place where it was attached to the Ariane launch vehicle, which is the launcher interface ring on the Sun-facing spacecraft bus, and then add fuel to its propulsion tank. Given that Webb is an exquisitely sensitive infrared observatory, and much of it is at cryogenic temperatures, opportunities and benefits of servicing are limited.

Image (Credit): JWST mission quick facts. (NASA)

JWST: It Can Be Dangerous in Space

Posted on by onespaceman2000
Image (Credit): Artist’s image of the James Webb Space Telescope. (NASA)

NASA reports that the James Webb Space Telescope (JWST) was hit by a micrometeroid last month. The tweet from NASAWebb stated:

In late May, Webb sustained a dust-sized micrometeroid impact to a primary mirror segment. Not to worry: Webb is still performing at a level that exceeds all mission requirements.

A second story explained how NASA tested the JWST for just such instances, though the final sentence was a little more worrisome:

Webb’s mirror was engineered to withstand bombardment from the micrometeoroid environment at its orbit around Sun-Earth L2 of dust-sized particles flying at extreme velocities. While the telescope was being built, engineers used a mixture of simulations and actual test impacts on mirror samples to get a clearer idea of how to fortify the observatory for operation in orbit. This most recent impact was larger than was modeled, and beyond what the team could have tested on the ground.

And this sentence is also worrisome:

Since launch, we have had four smaller measurable micrometeoroid strikes that were consistent with expectations and this one more recently that is larger than our degradation predictions assumed. 

The $10 billion space telescope, which is still working to become operational, is not expected to share images until mid-July. Unlike the Hubble Space Telescope, NASA cannot send astronauts out to the JWST to make periodic repairs. The JWST currently sits in the L2 Lagrange point about 1 million miles away. All NASA can do now is try to compensate for the damage as best it can.

NASA’s FY 2023 Budget Request

Posted on by onespaceman2000
Credit: NASA

So what else did NASA Administrator Bill Nelson share with the Senate Committee on Appropriations last week (beyond his comments about the International Space Station)? In his prepared statement regarding NASA’s $26 billion budget request, he highlighted a number of priorities for his agency, including:

  • the Artemis Program to bring astronauts back to the Moon and related exploration costs – $7.5 billion;
  • continued support for the ISS – $4.3 billion;
  • the space technology research and development portfolio for the Moon, Mars, and other areas, such as sending the CAPSTONE CubeSat to the Moon as a pathfinder for the Artemis program – $1.44 billion;
  • greater science funding for projects such as exploring solutions for bringing the samples of Martian rock and soil collected by the Perseverance rover to Earth through the Mars Sample Return mission – $8 billion; and
  • supporting the civil aviation manufacturing sector with test flights on its Low Boom Flight Demonstrator, which will enable environmentally and socially acceptable supersonic passenger flights, as well as continued work on the X-57 Maxwell, an all-electric aircraft – $971 million.

NASA certainly has a lot on its place, and I did not even highlight the focus on Earth iteself, such as the planned Earth System Observatory, which is an array of satellites, instruments, and missions designed to generate a 3D, holistic view of the entire planet.

We just provided a $40 billion aid package to Ukraine so that it can defend itself and have a better future. This $26 billion will take us out of the realm of Earth-bound conflicts and allow us to find our future in the stars, or at least the solar system. It is money well spent.

Space Stories: Near Earth Hazards, Mars Helicopter, and Super-Earths

Posted on by onespaceman2000
Image (Credit): he NEO Surveyor infrared space telescope is optimized for finding, tracking and characterizing potentially hazardous asteroids and comets. (NASA/JPL)

Here are some recent stories of interest.

—Spacenews.com: “House committee questions proposed delay in NASA asteroid mission“

Members of the House Science Committee used a hearing about the planetary science decadal survey to criticize a proposal in NASA’s budget request to delay work on a space telescope to track near Earth objects (NEOs).

—NASA: “NASA’s Ingenuity Mars Helicopter Captures Video of Record Flight“

The Ingenuity Mars Helicopter’s black-and-white navigation camera has provided dramatic video of its record-breaking 25th flight, which took place on April 8. Covering a distance of 2,310 feet (704 meters) at a speed of 12 mph (5.5 meters per second), it was the Red Planet rotorcraft’s longest and fastest flight to date. (Ingenuity is currently preparing for its 29th flight.)

—Space.com: “James Webb Space Telescope will study two strange ‘super-Earths‘

The James Webb Space Telescope plans to explore strange, new rocky worlds in unprecedented detail...Rocky planets are more difficult to sight than gas giants in current telescope technology, due to the smaller planets’ relative brightness next to a star, and their relatively tiny size. But Webb’s powerful mirror and deep-space location should allow it to examine two planets slightly larger than Earth, known as “super-Earths.”

Image (Credit): Illustration showing what exoplanet 55 Cancri e could look like, based on current understanding of the planet. (webbtelescope.org)

The Latest on Exocomets

Posted on by onespaceman2000
Image (Credit): Artist’s drawing of exocomets around the young Beta Pictoris. (NASA/FUSE/Lynette Cook)

We have all heard about exoplanets and exomoons, but what about exocomets? It appears the bodies we can observe outside of our solar system are getting even smaller. In a Scientific American article, “Ukrainian Astronomers Discover ‘Exocomets’ around Another Star,” we learn about Ukrainian astronomers who found five such comets using data from NASA’s Transiting Exoplanet Survey Satellite (TESS).

The comets in question orbit the young star Beta Pictoris, which is about 65 light-years from Earth. This is not the first time comments were detected in this distant solar system’s debris disk. The researchers confirmed those earlier sighting as well. The planet-forming debris surrounding the star presents plenty of opportunities for comet sightings.

Such findings, using information from both the Kepler Space Telescope and TESS, continue to expand our understanding of these objects. Once we focus the James Webb Space Telescope on these little bodies, it should get even more interesting.

Extra: You can find the 2019 Astronomy article on the exocomets around Beta Pictoris here.