NSF award 2535855 · Massachusetts Institute of Technology

Frontier Science with the Event Horizon Telescope

Final report due

28 January 2028

in 467 days · The award ends on 30 September 2027.

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Dates this award owes

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Decide about an extension2 Jun 2027in 227 days
award ending 2027-09-30 · Research.gov
This one is ours, not NSF’s.
Extension request16 Aug 2027in 302 days
award ending 2027-09-30 · Research.gov
PAPPG 24-1: “at least 45 days prior to the end date”
No-cost extension notice20 Sep 2027in 337 days
award ending 2027-09-30 · Research.gov
PAPPG 24-1: “at least ten calendar days prior to the end date”
Final report due28 Jan 2028in 467 days
award ending 2027-09-30 · Research.gov
PAPPG 24-1: “no later than 120-days following the end date of the award”
Project outcomes report due28 Jan 2028in 467 days
award ending 2027-09-30 · Research.gov
PAPPG 24-1: “no later than 120 days following the end date”
Award is closed out28 Jan 2028in 467 days
award ending 2027-09-30 · Research.gov
PAPPG 24-1: “financially closed out 120 days after their expiration date”

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How we got this date

NSF lists this award's end date as 30 September 2027.
NSF rules say the final report is due no later than 120 days after that.
So the final report is due by 28 January 2028.

Read the rule on Research.gov

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Award card

Award number: 2535855
Period of support: 1 Oct 2025 – 30 Sep 2027
Amount: $2,606,099
Awardee: Massachusetts Institute of Technology, Cambridge, MA
Program: MID-SCALE INSTRUMENTATION
Directorate: MPS

Abstract

This award supports one year of continued operations of the Event Horizon Telescope (EHT) as a facility for frontier science, leveraging extensive NSF and international investment. Initially conceived as an instrument to produce images of supermassive black holes (SMBH), recent upgrades allow the EHT to explore the dynamics of accretion and outflow around black holes using time-lapse monitoring. New operating modes…

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