text-only page produced automatically by LIFT Text Transcoder Skip all navigation and go to page contentSkip top navigation and go to directorate navigationSkip top navigation and go to page navigation
National Science Foundation Home National Science Foundation - Mathematical & Physical Sciences (MPS)
Astronomical Sciences (AST)
design element
AST Home
About AST
Funding Opportunities
Career Opportunities
AST Presentations
Astronomy & Astrophysics Advisory Committee (AAAC)
AST Portfolio Review
See Additional AST Resources
View AST Staff
MPS Organizations
Astronomical Sciences (AST)
Chemistry (CHE)
Materials Research (DMR)
Mathematical Sciences (DMS)
Physics (PHY)
Office of Multidisciplinary Activities (OMA)
Proposals and Awards
Proposal and Award Policies and Procedures Guide
Proposal Preparation and Submission
bullet Grant Proposal Guide
  bullet Grants.gov Application Guide
Award and Administration
bullet Award and Administration Guide
Award Conditions
Merit Review
NSF Outreach
Policy Office
Additional AST Resources
Career Opportunities
Other Site Features
Special Reports
Research Overviews
Multimedia Gallery
Classroom Resources
NSF-Wide Investments

Email this pagePrint this page
All Images

Planetary Construction Zone?

Back to article | Note about images

Photo of TW Hydrae

An artist's depiction of the dusty disk surrounding nearby star system TW Hydrae. The disk holds vast swaths of pebbles extending outward for at least one billion miles. According to common theory, these pebbles are an early sign of the planet formation process, which begins when dust grains in a disk collide and accrete to form larger and larger clumps.

Credit: Bill Saxton, NRAO/AUI/NSF


Very Large Array

The Very Large Array's twenty-seven operating antennae are spread throughout the plains of San Agustin, N.M. The receivers are currently being upgraded and refurbished to allow increased sensitivity and more efficient transmission of data. The task is expected to be completed by 2011.

Credit: NRAO/AUI


Email this pagePrint this page
Back to Top of page