Author Topic: House Hearing on Exoplanet Discoveries: Have We Found Other Earths?  (Read 4791 times)

Offline yg1968

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Subcommittee on Space and Subcommittee on Research Joint Hearing - Exoplanet Discoveries: Have We Found Other Earths?

http://science.house.gov/hearing/subcommittee-space-and-subcommittee-research-joint-hearing-exoplanet-discoveries-have-we

Offline yg1968

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Hearing has already started. It started at 10 am EDT. 

Offline yg1968

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Hearing is now over.

Offline jongoff

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Anything interesting happen? I saw a few tweets from Jeff Foust, but not much other than that.

~Jon

Offline yg1968

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Offline Proponent

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How I hate Edgeboss.  Is the hearing available for download anywhere?  I can't find it on YouTube.

Offline Robert Thompson

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Offline Robert Thompson

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Exo is my tribe, so gratis:

Opening statements

Doyle Kepler. 30yr career, catalogue eclipsing binaries, now doing circumbinary planets of Tatooine type, PR
O2 biomarkers, Kepler 62f maybe too big to recycle atmosphere w tectonics

Grunsfeld NASA. 900+, exoplanets ap on smartphones, 122 by Kepler, 2700 KOI, on avg every star has 1+ planet, 1/6 M dwarfs have rocky in HZ, Hubble has dir imaged, charac. atom, 2018 JWST IR + coronagraph + spectra. Trans Exo Surv Sat all sky survey nearest bright feed targets to JWST and Atacama Large Millimeter Array. NRO donated dish + coronagraph for dir img. "Exoplanets capture the imagination of everyday people."

Ulvestad NSF. 1992 Arecibo. Planets around a neutron star, planets larger than Jupiter - revolutionizing surprises. Investigators, tools, tech development. Early career awards and fellowships in exoplanets. Gr based scopes. Tech devel eg: more accurate wavelength standards to determine motions (radial velocity resolution). $25m inst on Gemini South to image 600+ nearby stars at Jupiter_orbit distance. Crediting 62 e and f discovery technique to NSF grant. Atacama Large Millimeter Array 'has detected' earth mass planets around Fomalhaut.



Palazzo > Grunsfeld
Space Telescope Science Institute has indicated telescope larger than JWST is needed to detect biosignatures.
Also indicated HLV such as SLS needed to do this.
How does SLS help exoplanet science?

Grunsfeld. SLS has mass, more importantly has large launch shroud. JWST origami. SLS transformative to scale that up.

Palazzo > Grunsfeld
Nasa outreach?

Grunsfeld: Broad educated populace w scien method. Need exciting discoveries. Combining education / STEM capabilities.

Palazzo > Grunsfeld
How NASA exoplanets accord to Decadal New Worlds New Horizons 2010 under tougher budgetary environment?

Grunsfeld: Hubble, Spitzer, Kepler, TESS (all closest exo, down to some atmo, water in atmo of rocky indicates lakes), JWST (6.5 m diam), AFTA (Astrophysics Focused Telescope Asset using 2.4 ex-NRO dish, wide field meeting WFIRST + chronograph), New Worlds Telescope (very large 16-20 meters diameter i.e., SLS). Constrained budget makes NRO asset attractive.



Edwards > Grunsfeld
How keep science per low budget?

Grunsfeld: Slow devel of TESS, turn off an orbiting telescope, reduce/slow down AFTA.

Edwards > Ulvestad

Ulvestad: Newer telescopes more pricey, so reduce research grants to individual investigators. Coordinate space and ground. If can't fund ALMA postdocs, intl partners will get first best exo science. Serious concern. Don't scrimp on infrastructure. Don't invest in big tools if you can't maintain return from big investment.

Edwards > Grunsfeld
Like Hubble, how much bang for buck can be predicted if JWST is man-rated for extended lifespan?

Grunsfeld: Serviceable IR very cold million miles from earth inaccessible, idea abandoned. No capability for upgrades. Onboard fuel gives 5 years minimum specs. The Hope is that we could get 11 years of life. Can maximize JWST output by ALMA direction.



Bucshon (IN) > Grunsfeld: Discretionary programs hurting. Indiana <== wants to know what's in exoplanets for them.

Grunsfeld: 1. $ to NASA NSF is $ to future. "Endless Frontier" document after WW2 eco, health. Try to solve very hard problems, very hard challenges, drive innovations in economy. 2. Kids looking up in night sky.

Bucshon (IN) > Grunsfeld: Water and carbon-based life, are we looking for anything else?

Grunsfeld: Curiosity can see other things.

Doyle: Work with what you know, but silicon isn't ruled out yet.



Lipinski: NRO scopes?

Grunsfeld: AFTA need approval to go to engineering validation. Waiting for JWST.

Lipinski: How to better coord NSF NASA?

Ulvestad: Joint programs. Program officers keep talking, compare proposals, complement not duplicate.

Grunsfeld: Budget limited forces communication to ensure no duplication. Exo sic has a natural break point.

Doyle: SETI non profit, many research inst small, planet hunters has millions amateurs looking for exo, non-profit realm to be tapped.



Smith: How expedite process? "We need to stay on track with the exoplanet missions that were hilighted. Make sure current missions proposed are funded." Other missions to consider?

Grunsfeld: FR14 funds TESS fully funds JWST. Nature dictates when we find Earth 2.

Doyle: On track.

Smith > Ulvestad: Duplicate some intl missions or rely?

Ulvestad: Not duplicating but going in together on too large to do by yourself. ALMA was originally to 3 three same type that melted together.

Smith > Doyle What new tech devel to detect organic life?

Doyle: Larger telescope. Oxygen can be detected by transit by differential subtraction with enough transits.

Grunsfeld: Critical limitation is separating light. 4-5 techniques of light suppression under devel. 5 years to detect lifesigns at levels found on earth.

Ulvestad: Sep light host from exo. Gemini telescope can 'only' null down to Jupiter orbit.



Bonamici: Near Earth Objects, intl collab. Big picture VS back in districts: what's in it for back home public. Translate benefits to public at large.

Grunsfeld: Collab many space agencies. Hubble originally 15% ESA. All data public, press releases, EPO, preservice, inservice teachers.

Doyle: Kepler team huge number intl, automatically intl. Kepler starting a Wiki University from SETI Inst. 'Pass SAT taking our classes'

Ulvestad: Competition for leadership during collaboration. We want US scientists can use our tools. LSST goal characterize asteroid population, partnership with Dept. Energy. NSF public 'broader impacts' grant requirement. Large fraction was going into K12, high schools.



Rohrabacher: ATLAST doesn't need SLS? What could use EELVs?

Grunsfeld: Advanced Large Area Space Telescope concept New World class. 8m /

Rohrabacher: So the answer is "Yes". You (NASA) don't know budget for SLS. 'If that money was taken out of your budget to devel the SLS launch system, rather than go with the launch systems we've got, would you be supportive of that?'

Grunsfeld: No

Rohrabacher: Right I just wanted that on record. We don't know what the budget is, we might de-fund what it's supposed to carry, i.e., your projects. We almost closed down Aricebo for lack of funds. It remains an important part of exo science.

Offline Proponent

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I used http://www.videolan.org/

I have and like VLC and in the past was able to store House and Senate hearings on my hard drive for review while exercising.  In the last several months, though, I've found that this no longer works.  If you know what the trick is, please do tell.

Offline yg1968

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How I hate Edgeboss.  Is the hearing available for download anywhere?  I can't find it on YouTube.


Offline yg1968

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Grunsfeld: Hubble, Spitzer, Kepler, TESS (all closest exo, down to some atmo, water in atmo of rocky indicates lakes), JWST (6.5 m diam), AFTA (Astrophysics Focused Telescope Asset using 2.4 ex-NRO dish, wide field meeting WFIRST + chronograph), New Worlds Telescope (very large 16-20 meters diameter i.e., SLS). Constrained budget makes NRO asset attractive.


Below is the slide that went with that. The mission that are hard to read are AFTA and the New Worlds Telescope.

Although, they spoke of using SLS for a giant telescope. There was no commitment towards such a mission. But Grunsfeld said they were looking very closely at the AFTA (ex-NRO) telescope as the next mission (especially given the constrained fiscal environment). However, he said that no decision has yet been made. They are just studying it at this point. See the 24 minute mark of the Youtube video above.

One of the highlights was when Smith asked should we be doing more (other than fund the currently planned missions)? Grunsfeld said no, we are on the right track with the missions that are in the work (i.e., the ones mentioned above).
« Last Edit: 05/11/2013 03:05 am by yg1968 »

Offline Proponent

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« Last Edit: 05/13/2013 11:06 am by Proponent »

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