Physics & Astronomy
galaxies
100%
collisions
87%
detectors
71%
stars
60%
quarks
57%
luminosity
54%
telescopes
48%
decay
47%
quasars
43%
planets
43%
dust
37%
bosons
35%
energy
34%
cross sections
32%
protons
32%
leptons
31%
transverse momentum
29%
interactions
29%
Higgs bosons
28%
star formation
27%
spectroscopy
27%
hadrons
26%
electrons
25%
supernovae
24%
molecules
24%
quantum chromodynamics
24%
simulation
23%
Hubble Space Telescope
23%
predictions
22%
extrasolar planets
22%
mars
21%
gases
21%
muons
20%
photons
20%
x rays
20%
estimates
20%
wavelengths
20%
asteroids
19%
radii
19%
orbitals
19%
color
19%
continuums
19%
histories
19%
pulses
19%
confidence
18%
dark energy
18%
center of mass
18%
cameras
18%
pair production
18%
orbits
17%
halos
17%
high resolution
17%
adaptive optics
17%
debris
16%
atoms
16%
excitation
16%
observatories
16%
rings
16%
mirrors
16%
cavities
16%
atmospheres
16%
water
15%
active galactic nuclei
15%
dwarf galaxies
15%
kinematics
15%
universe
15%
performance
15%
physics
15%
dark matter
14%
profiles
14%
photometry
14%
catalogs
14%
Titan
14%
time measurement
14%
lasers
14%
temperature
14%
anions
14%
metals
13%
propagation
13%
characterization
13%
ice
13%
scattering
13%
nuclei
13%
rocks
13%
mesons
13%
shock
13%
tectonics
13%
signatures
13%
probes
13%
ionization
12%
polarization
12%
chemistry
12%
spectrometers
12%
Jupiter (planet)
12%
quantum wells
12%
gluons
12%
rotational spectra
12%
geometry
12%
climate
12%
microwaves
12%
Earth & Environmental Sciences
luminosity
62%
planet
44%
dust
42%
distribution
30%
rate
29%
energy
29%
gas
26%
simulation
25%
near infrared
25%
Mars
24%
young
24%
detection
24%
climate
23%
basin
23%
accretion
23%
effect
22%
zircon
22%
history
22%
soil
22%
analysis
21%
spectroscopy
21%
parameter
21%
wavelength
21%
radio
21%
temperature
20%
modeling
20%
atmosphere
19%
transition
19%
asteroid
19%
water
18%
observatory
16%
test
15%
method
15%
particle
15%
prediction
15%
comparison
15%
calibration
14%
probe
14%
experiment
14%
mountain
14%
geochronology
14%
science
14%
groundwater
14%
merger
13%
Titan
13%
timescale
13%
terrane
13%
plateau
13%
soil moisture
13%
kinematics
13%
porous medium
12%
material
12%
aquifer
12%
outflow
12%
sediment
12%
monsoon
12%
lake
12%
tracer
12%
carbon
12%
rock
12%
desert
12%
river
12%
Jupiter
11%
crater
11%
vegetation
11%
drought
11%
cosmology
11%
aerosol
11%
cold
11%
ice
11%
tectonics
11%
metal
10%
spectrometer
10%
phylogenetics
10%
radiation
10%
Cretaceous
10%
mineral
10%
catchment
10%
gene
10%
climate change
10%
tree ring
10%
isotope
10%
cooling
10%
chemical
10%
trend
10%
rainfall
10%
hydrogen
10%
exhumation
10%
ion
9%
magnetic field
9%
extinction
9%
energetics
9%
ocean
9%
streamflow
9%
land surface
9%
erg
9%
ecosystem
9%
loss
9%
hydraulics
9%
provenance
9%
Medicine & Life Sciences
Memory
27%
Sleep
27%
Brain
25%
Manduca
25%
Connectin
24%
Proteins
22%
Genes
22%
Neurons
21%
Melanocyte-Stimulating Hormones
21%
Language
20%
Genome
20%
Peptides
19%
Insecta
19%
Learning
19%
Ligands
18%
Moths
17%
Ecosystem
15%
Population
14%
Emotions
14%
Opioid Receptors
14%
Child
13%
Muscles
13%
Depression
13%
Oryza
13%
Climate
13%
Water
12%
Phylogeny
11%
Psychology
11%
Temperature
11%
Hippocampus
11%
Semantics
11%
Arabidopsis
11%
Cues
11%
Soil
10%
Drosophila
10%
DNA
10%
Carbon
10%
Mutation
10%
Amino Acids
10%
Aptitude
10%
Health
10%
Alzheimer Disease
9%
Animals
9%
Sarcomeres
9%
Membranes
9%
Magnetic Resonance Imaging
9%
Melanocortin Receptors
9%
Ecology
9%
Light
9%
Growth
9%
Mushroom Bodies
9%
Cognition
9%
Metals
8%
Psychology Recognition
8%
Temporal Lobe
8%
Opioid Analgesics
8%
Diptera
8%
Electrons
8%
Sleep Initiation and Maintenance Disorders
8%
nebulin
8%
Forests
8%
Students
8%
Episodic Memory
8%
Direction compound
8%
Odorants
8%
Oceans and Seas
7%
D-Penicillamine (2,5)-Enkephalin
7%
Skeletal Muscle
7%
Neuropil
7%
Anxiety
7%
Datasets
7%
Axons
7%
Linguistics
7%
Enkephalins
7%
Theoretical Models
7%
Individuality
7%
Enzymes
7%
Phenotype
7%
Neoplasms
7%
Therapeutics
7%
Prefrontal Cortex
6%
Nitric Oxide
6%
Hispanic Americans
6%
Life History Traits
6%
Spectrum Analysis
6%
Young Adult
6%
Bacterial Artificial Chromosomes
6%
Mortality
6%
Oxygen
6%
Bacteria
6%
Planets
6%
Climate Change
6%
Neisseria gonorrhoeae
6%
Ions
6%
In Vitro Techniques
6%
Ants
6%
Short-Term Memory
6%
Oxytocin
6%
Arthropods
6%
Kinetics
6%