@Trevor_Gowan:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@p_acrc:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@dzorich:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@KirrinaBarry:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@Elizabe13504382:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@RRossachacj:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@SpaceRef:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@ExplorersClub:
RT @SmithsonianArch: To commemorate the life of Dr. Ursula B. Marvin, a geologist who spent over 30 years @saoastro, we reflect on her life…
- 6 years ago
@edyeowyn:
RT @geoscientistmag: Very sad to learn of the death of Ursula B Marvin, feminist, geologist, meteoriticist, historian of science and @geol…
- 6 years ago
@ECPgeo:
RT @geoscientistmag: Very sad to learn of the death of Ursula B Marvin, feminist, geologist, meteoriticist, historian of science and @geol…
- 6 years ago
@bonokas:
RT @geoscientistmag: Very sad to learn of the death of Ursula B Marvin, feminist, geologist, meteoriticist, historian of science and @geol…
- 6 years ago
@geoscientistmag:
Ursula B Marvin receiving the Sue Tyler Friedman Medal from President of @geolsoc Professor Peter Styles, 2005.
- 6 years ago