Harold Geller

GMU Associate Professor Emeritus; American U. Adjunct Professor; NASA/JPL Solar System Ambassador (volunteer). Opinions are my own. Links are not endorsements.

[Harold Geller @AstroBioProf]

14th Anniversary of the George Mason University Observatory telescope installed 10 May 2011. See https://t.co/oNpG6cCvdp

[Harold Geller @AstroBioProf]

Latest regarding Blue Origin explosion, see https://t.co/WY0xrO7OTO

[Harold Geller @AstroBioProf]

"How To Curve a Ball Backward Using Science | Physics Girl" See https://t.co/IGw1A7ICCx

[Harold Geller @AstroBioProf]

"Venus-Jupiter conjunction: Sky’s 2 brightest planets to meet" See https://t.co/qLWjQR6Pt8

[Harold Geller @AstroBioProf]

"The Men Who Walk Through Walls" by @BrianDunning see https://t.co/zoNtEhydEb

[Harold Geller @AstroBioProf]

"My Students Can’t Read" See https://t.co/LBwX5Lo0Bt

[Harold Geller @AstroBioProf]

"Trump FCC warns all broadcasters to follow orders or be punished like ABC" See https://t.co/VWQLxtGOZX

[Harold Geller @AstroBioProf]

"Proposed new US funding rules: We can cancel any grant at any time" See https://t.co/V1grc5lGH7

[Harold Geller @AstroBioProf]

"Young Americans' Job Market Pessimism Stands Out Globally" see https://t.co/p4PARNYpN7

[Harold Geller @AstroBioProf]

"The Coming Faculty Class War, and Other Prophecies" see https://t.co/5UCLc7rSsV

[Harold Geller @AstroBioProf]

"It’s time for Manhattanhenge! Here’s how to see it" https://t.co/TrHckGVO7m

[Harold Geller @AstroBioProf]

"On the Trail of the Rougarou" by @BrianDunning see https://t.co/1azzHySoZC

[Harold Geller @AstroBioProf]

@AlexaBliznk whew worldview wow

[Harold Geller @AstroBioProf]

"John F. Kennedy moon landing speech 65th anniversary" see https://t.co/pOV4v1bRny

[Harold Geller @AstroBioProf]

"2nd batch of Pentagon UAP files: Over 50 videos to watch" see https://t.co/IZ8ACrrIDH

[Harold Geller @AstroBioProf]

"My [Neil deGrasse Tyson] thoughts on the first round of UFO files" see https://t.co/gBV0eO3NNa

[Harold Geller @AstroBioProf]

"The Atlantic hurricane season forecast for 2026 is out!" see https://t.co/vnlulKFaJu

[Harold Geller @AstroBioProf]

"The Future of the Public Research University - Over the next decade, three trends will shape the sector." see https://t.co/l1LqpDWzIO

[Harold Geller @AstroBioProf]

"Venus-Jupiter Conjunction: What, When, How to Watch" see https://t.co/Nyd1WQ6oSe

[Harold Geller @AstroBioProf]

"Full Moon Myths" by @BrianDunning see https://t.co/siHlm3DqeH

[Harold Geller @AstroBioProf]

"Venus-Jupiter conjunction in June: Start watching now!" see https://t.co/qLWjQR6Pt8