Results 51 to 60 of about 46,866 (155)

Comet Halley and history [PDF]

open access: yes, 1979
A history of Halley's Comet is presented.
Marsden, B. G.
core  

Single Cell Analysis of Human RAD18-Dependent DNA Post-Replication Repair by Alkaline Bromodeoxyuridine Comet Assay [PDF]

open access: yes, 2013
Damage to DNA can block replication progression resulting in gaps in the newly synthesized DNA. Cells utilize a number of post-replication repair (PRR) mechanisms such as the RAD18 controlled translesion synthesis or template switching to overcome the ...
Himabindu Gali   +14 more
core   +2 more sources

Seasonal and Local Time Variation in the Observed Peak of the Meteor Altitude Distributions by Meteor Radars

open access: yesJournal of Geophysical Research: Atmospheres, Volume 129, Issue 21, 16 November 2024.
Abstract Meteoroids of sub‐milligram sizes burn up high in the Earth's atmosphere and cause streaks of plasma trails detectable by meteor radars. The altitude at which these trails, or meteors, form depends on a number of factors including atmospheric density and the astronomical source populations from which these meteoroids originate.
E. C. M. Dawkins   +26 more
wiley   +1 more source

Mount Stromlo and Siding Spring Observatories: Halley's comet promotional video

open access: yes, 1985
ANU promotion to TV industry, inviting them to Siding Spring and Stromlo observatories for Halley's ...
Speaker: Peter Leonard   +1 more
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Public for viewing Halley's Comet May 3.

open access: yes, 1986
1 p.May 3rd is the last public viewing of Halley's Comet in this area. The public is invited to the view the comet through cooperation of the Mahoning Valley Astronomical Society and the Department of Physics and Astronomy at YSU.

core  

Coordinated programs for comet Halley [PDF]

open access: yesSymposium - International Astronomical Union, 1986
Because comets are so difficult to observe, it is essential to coordinate observations from a variety of telescopes in order to fully understand their behavior. The apparition of Comet Halley represents a unique opportunity for coordinated programs because this is the only predictable comet which is routinely bright enough for the many observational ...
openaire   +1 more source

The Past Orbit of Halley's Comet [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1972
I have re-examined the records in the Chinese“Standard Histories”on this famous object, including one set of relatively precise observations made in the year 837 A.D., which has only recently become available in an English translation (Ho 1962). This set, when properly interpreted, consists of the comet’s right ascension on 10 specified dates, given to
openaire   +1 more source

Peeking At Halley'S

open access: yes, 1985
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Just in time to view Halley's comet, the Kirkpatrick Planetarium has acquired a telescope that officials say allows the best view of the comet in Oklahoma.
Wilson, George R.
core  

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