Blaberidae

Blaberidae incertae sedis

Blaberinae

Blacinae

Black hole

• alternatives
  
• candidates
  
• Kerr black holes
  
• tests of existence
  

Black Rhinoceros (Diceros bicornis)

Blackbody radiation

* Blackburn, Hugh

Blackett Patrick M S

Blackett: physics, war, and politics in the twentieth century, Mary Jo Nye

Blackfordiidae

Blackman, Frederick Frost

Blackwell, Elizabeth

* Blackwell, David
* Blades, Edward

Blagorrhina

Bland's rule

Blandfordiaceae

Blaps

Blaps halophila
Blaps lethifera
Blaps lusitanica

* Blaschke, Wilhelm

Blastocerus

Blatt Rainer

Blau Marietta

Blechnaceae

Blechnales

Blechnoideae

Blechnum penna-marina
Blechnum spicant

Blenniidae

Blennioidei

Blennius

Blennodon

Blepharidachne

Blepharoneuron

Blephilia

Blephilia ciliata
Blephilia hirsuta
Blephilia subnuda

Bletiinae

* Blichfeldt, Hans

Blinking Planetary Nebula

* Bliss, Gilbert

Blitopertha

* Bloch, André

Bloch, Felix
Bloch–Grüneisen law
Bloch’s theorem
Bloch wave

Block, Adam

Blödite

Bloembergen Nicolaas

Blom-Bar-Shalom’s IMM

Blondel, Andre

• stamp

Blondlot, Prosper-René

Bloomeria

Blosyrini

Blot (biology)

Blue Flash Nebula

* Blum, Lenore

Blum integer

Blumenthal, George

* Blumenthal, Otto

Blythipicus