Cecilia Payne-Gaposchkin (1900–1979) was a British-born American astronomer and astrophysicist who proposed in her 1925 doctoral thesis that stars were composed primarily of hydrogen and helium. Her groundbreaking conclusion was initially rejected because it contradicted the scientific wisdom of the time, which held that there were no significant elemental differences between the Sun and Earth. Independent observations eventually proved she was correct. Her work on the nature of variable stars was foundational to modern astrophysics.Photograph credit: Science Service; restored by Adam Cuerden
This user thinks that more Wikipedians would like userboxes if they were edible.
-xen
This user believes that userbox should always be pluralised userboxen, and thinks that this is one of the most important and exciting issues of our time.
Cat
This user believes userboxes should have categories.
This user joins with Dickens, Melville, and other great writers[1] in rejecting the canard that which may not be used for restrictive relative clauses.
than then
This user understands the difference between using "than" and "then."
their there they're
This user thinks that there are too many people who don’t know that they're worse than their own children at spelling!
your you're
This user thinks that if your grammar is incorrect, then you're in need of help.
English Singulars: "The data is..."
This user recognizes that "data", "media", and "agenda" have become incorporated into English as singular nouns.
Pickyness Pickiness
This user changes the adjective ending "y" to "i" to form nouns with "-ness".
This user understands the difference between its and it's. So should you.
’s
Thi's user know's that not every word that end's with s need's an apostrophe and will remove misused apostrophe's from Wikipedia with extreme prejudice.